From 39135a3e07243519dbe40a68e86a7ef524eb3f1b Mon Sep 17 00:00:00 2001
From: mfloryan <mfloryan@users.sourceforge.net>
Date: Fri, 18 Apr 2008 15:49:46 +0000
Subject: [PATCH] All extensions are now propper XML files with a namespace and
 all validate against the new inkscape.extension.rng RelaxNG schema.

---
 share/extensions/addnodes.inx                 |  3 +-
 share/extensions/ai_input.inx                 |  3 +-
 share/extensions/ai_output.inx                |  3 +-
 share/extensions/aisvg.inx                    |  3 +-
 share/extensions/ccx_input.inx                |  3 +-
 share/extensions/cdr_input.inx                |  3 +-
 share/extensions/cdt_input.inx                |  3 +-
 share/extensions/cgm_input.inx                |  3 +-
 share/extensions/cmx_input.inx                |  3 +-
 share/extensions/color_brighter.inx           |  3 +-
 share/extensions/color_custom.inx             |  3 +-
 share/extensions/color_darker.inx             |  3 +-
 share/extensions/color_desaturate.inx         |  3 +-
 share/extensions/color_grayscale.inx          |  3 +-
 share/extensions/color_lesshue.inx            |  3 +-
 share/extensions/color_lesslight.inx          |  3 +-
 share/extensions/color_lesssaturation.inx     |  3 +-
 share/extensions/color_morehue.inx            |  3 +-
 share/extensions/color_morelight.inx          |  3 +-
 share/extensions/color_moresaturation.inx     |  3 +-
 share/extensions/color_negative.inx           |  3 +-
 share/extensions/color_randomize.inx          |  3 +-
 share/extensions/color_removeblue.inx         |  3 +-
 share/extensions/color_removegreen.inx        |  3 +-
 share/extensions/color_removered.inx          |  3 +-
 share/extensions/color_replace.inx            |  3 +-
 share/extensions/color_rgbbarrel.inx          |  3 +-
 share/extensions/dia.inx                      |  3 +-
 share/extensions/dimension.inx                |  3 +-
 share/extensions/dots.inx                     |  3 +-
 share/extensions/dxf_input.inx                |  3 +-
 share/extensions/dxf_outlines.inx             |  3 +-
 share/extensions/dxf_output.inx               |  3 +-
 share/extensions/edge3d.inx                   |  3 +-
 share/extensions/embedimage.inx               |  3 +-
 share/extensions/eps_input.inx                |  3 +-
 share/extensions/epsi_output.inx              |  3 +-
 share/extensions/eqtexsvg.inx                 |  3 +-
 share/extensions/export_gimp_palette.inx      |  3 +-
 share/extensions/extractimage.inx             |  3 +-
 share/extensions/fig_input.inx                |  3 +-
 share/extensions/flatten.inx                  |  3 +-
 share/extensions/fractalize.inx               |  3 +-
 share/extensions/funcplot.inx                 | 77 ++++++++++---------
 share/extensions/gears.inx                    |  3 +-
 share/extensions/gimp_xcf.inx                 |  3 +-
 share/extensions/handles.inx                  |  3 +-
 share/extensions/inkscape.extension.rng       |  3 +
 .../extensions/inkscape_help_askaquestion.inx |  3 +-
 .../extensions/inkscape_help_commandline.inx  |  3 +-
 share/extensions/inkscape_help_faq.inx        |  3 +-
 share/extensions/inkscape_help_keys.inx       |  3 +-
 share/extensions/inkscape_help_manual.inx     |  3 +-
 share/extensions/inkscape_help_relnotes.inx   |  3 +-
 share/extensions/inkscape_help_reportabug.inx |  3 +-
 share/extensions/inkscape_help_svgspec.inx    |  3 +-
 share/extensions/interp.inx                   |  3 +-
 share/extensions/lindenmayer.inx              |  3 +-
 share/extensions/lorem_ipsum.inx              |  3 +-
 share/extensions/markers_strokepaint.inx      |  3 +-
 share/extensions/measure.inx                  | 47 +++++------
 share/extensions/motion.inx                   |  3 +-
 share/extensions/outline2svg.inx              |  3 +-
 share/extensions/pathalongpath.inx            | 67 ++++++++--------
 share/extensions/pathscatter.inx              | 62 +++++++--------
 share/extensions/perfectboundcover.inx        |  3 +-
 share/extensions/perspective.inx              |  3 +-
 share/extensions/ps_input.inx                 |  3 +-
 share/extensions/radiusrand.inx               |  3 +-
 share/extensions/randompnt.inx                |  3 +-
 share/extensions/randompos.inx                |  3 +-
 share/extensions/render_alphabetsoup.inx      |  3 +-
 share/extensions/render_barcode.inx           |  3 +-
 share/extensions/restack.inx                  |  3 +-
 share/extensions/rtree.inx                    |  3 +-
 share/extensions/rubberstretch.inx            |  3 +-
 share/extensions/sk1_input.inx                |  3 +-
 share/extensions/sk_input.inx                 |  3 +-
 share/extensions/spirograph.inx               |  3 +-
 share/extensions/straightseg.inx              |  3 +-
 share/extensions/summersnight.inx             |  3 +-
 share/extensions/svg2xaml.inx                 |  3 +-
 share/extensions/svg_and_media_zip_output.inx |  3 +-
 share/extensions/svgz_input.inx               |  3 +-
 share/extensions/svgz_output.inx              |  3 +-
 share/extensions/text_braille.inx             |  3 +-
 share/extensions/text_flipcase.inx            |  3 +-
 share/extensions/text_lowercase.inx           |  3 +-
 share/extensions/text_randomcase.inx          |  3 +-
 share/extensions/text_replace.inx             |  3 +-
 share/extensions/text_sentencecase.inx        |  3 +-
 share/extensions/text_titlecase.inx           |  3 +-
 share/extensions/text_uppercase.inx           |  3 +-
 share/extensions/txt2svg.inx                  |  3 +-
 share/extensions/whirl.inx                    |  3 +-
 share/extensions/wmf_input.inx                |  3 +-
 share/extensions/xaml2svg.inx                 |  3 +-
 97 files changed, 311 insertions(+), 221 deletions(-)
 create mode 100644 share/extensions/inkscape.extension.rng

diff --git a/share/extensions/addnodes.inx b/share/extensions/addnodes.inx
index c6db21e54..b753bbbe2 100644
--- a/share/extensions/addnodes.inx
+++ b/share/extensions/addnodes.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Add Nodes</_name>
     <id>org.ekips.filter.addnodes</id>
 	<dependency type="executable" location="extensions">addnodes.py</dependency>
diff --git a/share/extensions/ai_input.inx b/share/extensions/ai_input.inx
index 2adcac2c5..adc79dc5c 100644
--- a/share/extensions/ai_input.inx
+++ b/share/extensions/ai_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>AI 8.0 Input</_name>
     <id>org.inkscape.input.ai</id>
     <dependency type="executable" location="path">perl</dependency>
diff --git a/share/extensions/ai_output.inx b/share/extensions/ai_output.inx
index a4a07da49..a94dd76a0 100644
--- a/share/extensions/ai_output.inx
+++ b/share/extensions/ai_output.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>AI 8.0 Output</_name>
     <id>org.inkscape.output.ai</id>
     <dependency type="executable" location="path">gs</dependency>
diff --git a/share/extensions/aisvg.inx b/share/extensions/aisvg.inx
index 3168e043a..929fd4546 100644
--- a/share/extensions/aisvg.inx
+++ b/share/extensions/aisvg.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>AI SVG Input</_name>
     <id>org.inkscape.input.aisvg</id>
     <input>
diff --git a/share/extensions/ccx_input.inx b/share/extensions/ccx_input.inx
index 89b89fedd..3ed4a2dbe 100644
--- a/share/extensions/ccx_input.inx
+++ b/share/extensions/ccx_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Corel DRAW Compressed Exchange files input</_name>
     <id>org.inkscape.input.ccx</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/cdr_input.inx b/share/extensions/cdr_input.inx
index 205eacefb..7feeedf87 100644
--- a/share/extensions/cdr_input.inx
+++ b/share/extensions/cdr_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Corel DRAW Input</_name>
     <id>org.inkscape.input.cdr</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/cdt_input.inx b/share/extensions/cdt_input.inx
index 434b7bdad..698b37dee 100644
--- a/share/extensions/cdt_input.inx
+++ b/share/extensions/cdt_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Corel DRAW templates input</_name>
     <id>org.inkscape.input.cdt</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/cgm_input.inx b/share/extensions/cgm_input.inx
index 6ce690f32..82b526530 100644
--- a/share/extensions/cgm_input.inx
+++ b/share/extensions/cgm_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Computer Graphics Metafile files input</_name>
     <id>org.inkscape.input.cgm</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/cmx_input.inx b/share/extensions/cmx_input.inx
index b57374370..b4500102d 100644
--- a/share/extensions/cmx_input.inx
+++ b/share/extensions/cmx_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Corel DRAW Presentation Exchange files input</_name>
     <id>org.inkscape.input.cmx</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/color_brighter.inx b/share/extensions/color_brighter.inx
index e91428ef5..437478ef5 100644
--- a/share/extensions/color_brighter.inx
+++ b/share/extensions/color_brighter.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Brighter</_name>
 	<id>org.inkscape.color.brighter</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_custom.inx b/share/extensions/color_custom.inx
index 6ec34e64d..78fd504aa 100644
--- a/share/extensions/color_custom.inx
+++ b/share/extensions/color_custom.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Custom</_name>
 	<id>org.inkscape.color.custom</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_darker.inx b/share/extensions/color_darker.inx
index 40cc78d8b..f977b827a 100644
--- a/share/extensions/color_darker.inx
+++ b/share/extensions/color_darker.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Darker</_name>
 	<id>org.inkscape.color.darker</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_desaturate.inx b/share/extensions/color_desaturate.inx
index 80d54cdba..e249b8903 100644
--- a/share/extensions/color_desaturate.inx
+++ b/share/extensions/color_desaturate.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Desaturate</_name>
 	<id>org.inkscape.color.desaturate</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_grayscale.inx b/share/extensions/color_grayscale.inx
index ee3acf782..e1a3b48e1 100644
--- a/share/extensions/color_grayscale.inx
+++ b/share/extensions/color_grayscale.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Grayscale</_name>
 	<id>org.inkscape.color.grayscale</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_lesshue.inx b/share/extensions/color_lesshue.inx
index e285bf93e..11aad6106 100644
--- a/share/extensions/color_lesshue.inx
+++ b/share/extensions/color_lesshue.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Less Hue</_name>
 	<id>org.inkscape.color.lesshue</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_lesslight.inx b/share/extensions/color_lesslight.inx
index 66b9be11a..5d66c900f 100644
--- a/share/extensions/color_lesslight.inx
+++ b/share/extensions/color_lesslight.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Less Light</_name>
 	<id>org.inkscape.color.lesslight</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_lesssaturation.inx b/share/extensions/color_lesssaturation.inx
index 860dcd12b..7ace6f947 100644
--- a/share/extensions/color_lesssaturation.inx
+++ b/share/extensions/color_lesssaturation.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Less Saturation</_name>
 	<id>org.inkscape.color.lesssaturation</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_morehue.inx b/share/extensions/color_morehue.inx
index 6fe3ac785..279747d45 100644
--- a/share/extensions/color_morehue.inx
+++ b/share/extensions/color_morehue.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>More Hue</_name>
 	<id>org.inkscape.color.morehue</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_morelight.inx b/share/extensions/color_morelight.inx
index cefd3c0b6..416f7a362 100644
--- a/share/extensions/color_morelight.inx
+++ b/share/extensions/color_morelight.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>More Light</_name>
 	<id>org.inkscape.color.morelight</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_moresaturation.inx b/share/extensions/color_moresaturation.inx
index ab5898ec4..0f479ab85 100644
--- a/share/extensions/color_moresaturation.inx
+++ b/share/extensions/color_moresaturation.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>More Saturation</_name>
 	<id>org.inkscape.color.moresaturation</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_negative.inx b/share/extensions/color_negative.inx
index 5651d8483..cae536336 100644
--- a/share/extensions/color_negative.inx
+++ b/share/extensions/color_negative.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Negative</_name>
 	<id>org.inkscape.color.negative</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_randomize.inx b/share/extensions/color_randomize.inx
index 43b923fd6..a6fdb7256 100644
--- a/share/extensions/color_randomize.inx
+++ b/share/extensions/color_randomize.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Randomize</_name>
 	<id>org.inkscape.color.randomize</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_removeblue.inx b/share/extensions/color_removeblue.inx
index 898bcf973..6f7ce46df 100644
--- a/share/extensions/color_removeblue.inx
+++ b/share/extensions/color_removeblue.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Remove Blue</_name>
 	<id>org.inkscape.color.removeblue</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_removegreen.inx b/share/extensions/color_removegreen.inx
index 6ba2c5694..1d35a58d3 100644
--- a/share/extensions/color_removegreen.inx
+++ b/share/extensions/color_removegreen.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Remove Green</_name>
 	<id>org.inkscape.color.removegreen</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_removered.inx b/share/extensions/color_removered.inx
index 110a20c97..918e7c1c2 100644
--- a/share/extensions/color_removered.inx
+++ b/share/extensions/color_removered.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Remove Red</_name>
 	<id>org.inkscape.color.removered</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_replace.inx b/share/extensions/color_replace.inx
index 3e6ebb91a..f62b2a4e5 100644
--- a/share/extensions/color_replace.inx
+++ b/share/extensions/color_replace.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Replace color</_name>
 	<id>org.inkscape.color.replacecolor</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/color_rgbbarrel.inx b/share/extensions/color_rgbbarrel.inx
index 11fbf26b2..f956ab961 100644
--- a/share/extensions/color_rgbbarrel.inx
+++ b/share/extensions/color_rgbbarrel.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>RGB Barrel</_name>
 	<id>org.inkscape.color.rgbbarrel</id>
 	<dependency type="executable" location="extensions">coloreffect.py</dependency>
diff --git a/share/extensions/dia.inx b/share/extensions/dia.inx
index 874076449..746fbcd56 100644
--- a/share/extensions/dia.inx
+++ b/share/extensions/dia.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Dia Input</_name>
     <id>org.inkscape.input.dia</id>
     <dependency type="executable" location="extensions" _description="The dia2svg.sh script should be installed with your Inkscape distribution.  If you do not have it, there is likely to be something wrong with your Inkscape installation.">dia2svg.sh</dependency>
diff --git a/share/extensions/dimension.inx b/share/extensions/dimension.inx
index e2e7c2bd1..f9fdc20eb 100644
--- a/share/extensions/dimension.inx
+++ b/share/extensions/dimension.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Dimensions</_name>
     <id>se.lewerin.filter.dimension</id>
 	<dependency type="executable" location="extensions">dimension.py</dependency>
diff --git a/share/extensions/dots.inx b/share/extensions/dots.inx
index ac306cffc..4655f838b 100644
--- a/share/extensions/dots.inx
+++ b/share/extensions/dots.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Number Nodes</_name>
     <id>org.ekips.filter.dots</id>
 	<dependency type="executable" location="extensions">dots.py</dependency>
diff --git a/share/extensions/dxf_input.inx b/share/extensions/dxf_input.inx
index 769c29fdd..8a37eff61 100644
--- a/share/extensions/dxf_input.inx
+++ b/share/extensions/dxf_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>DXF Input</_name>
     <id>org.inkscape.input.dxf</id>
     <dependency type="executable" _description="dxf2svg may come with Inkscape, but is also at http://dxf-svg-convert.sourceforge.net/">dxf2svg</dependency>
diff --git a/share/extensions/dxf_outlines.inx b/share/extensions/dxf_outlines.inx
index 8438558e6..0fc032d6f 100644
--- a/share/extensions/dxf_outlines.inx
+++ b/share/extensions/dxf_outlines.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Desktop Cutting Plotter</_name>
     <id>org.ekips.output.dxf_outlines</id>
 	<dependency type="extension">org.inkscape.output.svg.inkscape</dependency>
diff --git a/share/extensions/dxf_output.inx b/share/extensions/dxf_output.inx
index 1c5e37a9a..0cb0b734f 100644
--- a/share/extensions/dxf_output.inx
+++ b/share/extensions/dxf_output.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>DXF Output</_name>
     <id>org.inkscape.output.dxf</id>
     <dependency type="extension">org.inkscape.output.ps</dependency>
diff --git a/share/extensions/edge3d.inx b/share/extensions/edge3d.inx
index 6bd4c928c..9b287359f 100644
--- a/share/extensions/edge3d.inx
+++ b/share/extensions/edge3d.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
   <_name>Edge 3D</_name>
   <id>org.greygreen.inkscape.effects.edge3d</id>
   <dependency type="executable" location="extensions">edge3d.py</dependency>
diff --git a/share/extensions/embedimage.inx b/share/extensions/embedimage.inx
index fd0c2e3b3..b244e7855 100644
--- a/share/extensions/embedimage.inx
+++ b/share/extensions/embedimage.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Embed All Images</_name>
     <id>org.ekips.filter.embedimage</id>
 	<dependency type="executable" location="extensions">embedimage.py</dependency>
diff --git a/share/extensions/eps_input.inx b/share/extensions/eps_input.inx
index b901d3b6f..5529f003b 100644
--- a/share/extensions/eps_input.inx
+++ b/share/extensions/eps_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>EPS Input</_name>
     <id>org.inkscape.input.eps</id>
     <dependency type="executable">pstoedit</dependency>
diff --git a/share/extensions/epsi_output.inx b/share/extensions/epsi_output.inx
index 06197dc0a..80f19038e 100644
--- a/share/extensions/epsi_output.inx
+++ b/share/extensions/epsi_output.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>EPSI Output</_name>
     <id>org.inkscape.output.epsi</id>
     <dependency type="extension">org.inkscape.output.ps</dependency>
diff --git a/share/extensions/eqtexsvg.inx b/share/extensions/eqtexsvg.inx
index b9923f45b..e99dfeb1d 100644
--- a/share/extensions/eqtexsvg.inx
+++ b/share/extensions/eqtexsvg.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>LaTeX formula</_name>
     <id>org.inkscape.effect.eqtexsvg</id>
 	<dependency type="executable" location="extensions">eqtexsvg.py</dependency>
diff --git a/share/extensions/export_gimp_palette.inx b/share/extensions/export_gimp_palette.inx
index bad53b91f..b7a1b158e 100644
--- a/share/extensions/export_gimp_palette.inx
+++ b/share/extensions/export_gimp_palette.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Export as GIMP Palette</_name>
     <id>com.kaioa.export_gimp_palette</id>
     <dependency type="executable" location="extensions">export_gimp_palette.py</dependency>
diff --git a/share/extensions/extractimage.inx b/share/extensions/extractimage.inx
index ea621d40b..bcde98ec2 100644
--- a/share/extensions/extractimage.inx
+++ b/share/extensions/extractimage.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Extract One Image</_name>
     <id>org.ekips.filter.extractimage</id>
 	<dependency type="executable" location="extensions">extractimage.py</dependency>
diff --git a/share/extensions/fig_input.inx b/share/extensions/fig_input.inx
index 8fe9d9c6e..5ef749bc6 100644
--- a/share/extensions/fig_input.inx
+++ b/share/extensions/fig_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>XFIG Input</_name>
     <id>org.inkscape.input.fig</id>
     <dependency type="executable" location="path">fig2dev</dependency>
diff --git a/share/extensions/flatten.inx b/share/extensions/flatten.inx
index 9fef61114..8167175d8 100644
--- a/share/extensions/flatten.inx
+++ b/share/extensions/flatten.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
    <_name>Flatten Beziers</_name>
    <id>org.ekips.filter.flatten</id>
        <dependency type="executable" location="extensions">flatten.py</dependency>
diff --git a/share/extensions/fractalize.inx b/share/extensions/fractalize.inx
index 4bb4e66c9..189bb2afa 100755
--- a/share/extensions/fractalize.inx
+++ b/share/extensions/fractalize.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Fractalize</_name>
     <id>org.ekips.filter.fractalize</id>
 	<dependency type="executable" location="extensions">fractalize.py</dependency>
diff --git a/share/extensions/funcplot.inx b/share/extensions/funcplot.inx
index a902fa28a..928583624 100644
--- a/share/extensions/funcplot.inx
+++ b/share/extensions/funcplot.inx
@@ -1,21 +1,22 @@
-<inkscape-extension>
-    <_name>Function Plotter</_name>
-    <id>org.inkscape.effect.funcplot</id>
-	<dependency type="executable" location="extensions">funcplot.py</dependency>
-	<dependency type="executable" location="extensions">inkex.py</dependency>
-	<param name="tab" type="notebook">
-	    <page name="sampling" _gui-text="Range and Sampling">
-		<param name="xstart"   type="float" min="-1000.0" max="1000.0" _gui-text="Start x-value">0.0</param>
-		<param name="xend"     type="float" min="-1000.0" max="1000.0" _gui-text="End x-value">1.0</param>
-        	<param name="times2pi" type="boolean"                          _gui-text="Multiply x-range by 2*pi">false</param>
-		<param name="ybottom"  type="float" min="-1000.0" max="1000.0" _gui-text="y-value of rectangle's bottom">0.0</param>
-		<param name="ytop"     type="float" min="-1000.0" max="1000.0" _gui-text="y-value of rectangle's top">1.0</param>
-		<param name="samples"  type="int"   min="2"       max="1000"   _gui-text="Samples">8</param>
-		<param name="isoscale" type="boolean" _gui-text="Isotropic scaling (uses smallest: width/xrange or height/yrange)">false</param>
-		<param name="polar"    type="boolean" _gui-text="Use polar coordinates">true</param>
-	    </page>
-	    <page name="use" _gui-text="Use">
-        	<_param name="funcplotuse" type="description">Select a rectangle before calling effect.
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>Function Plotter</_name>
+  <id>org.inkscape.effect.funcplot</id>
+  <dependency type="executable" location="extensions">funcplot.py</dependency>
+  <dependency type="executable" location="extensions">inkex.py</dependency>
+  <param name="tab" type="notebook">
+    <page name="sampling" _gui-text="Range and Sampling">
+      <param name="xstart" type="float" min="-1000.0" max="1000.0" _gui-text="Start x-value">0.0</param>
+      <param name="xend" type="float" min="-1000.0" max="1000.0" _gui-text="End x-value">1.0</param>
+      <param name="times2pi" type="boolean" _gui-text="Multiply x-range by 2*pi">false</param>
+      <param name="ybottom" type="float" min="-1000.0" max="1000.0" _gui-text="y-value of rectangle's bottom">0.0</param>
+      <param name="ytop" type="float" min="-1000.0" max="1000.0" _gui-text="y-value of rectangle's top">1.0</param>
+      <param name="samples" type="int" min="2" max="1000" _gui-text="Samples">8</param>
+      <param name="isoscale" type="boolean" _gui-text="Isotropic scaling (uses smallest: width/xrange or height/yrange)">false</param>
+      <param name="polar" type="boolean" _gui-text="Use polar coordinates">true</param>
+    </page>
+    <page name="use" _gui-text="Use">
+      <_param name="funcplotuse" type="description">Select a rectangle before calling effect.
 Rectangle determines x and y scales.
 
 With polar coordinates:
@@ -23,9 +24,9 @@ With polar coordinates:
    x scale is set so left and right edges of rectangle are at +/-1.
    Isotropic scaling is disabled.
    First derivative is always determined numerically.</_param>
-	    </page>
-	    <page name="desc" _gui-text="Functions">
-        	<_param name="pythonfunctions" type="description">Standard python math functions are available:
+    </page>
+    <page name="desc" _gui-text="Functions">
+      <_param name="pythonfunctions" type="description">Standard python math functions are available:
 
 ceil(x); fabs(x); floor(x); fmod(x,y); frexp(x); ldexp(x,i); 
 modf(x); exp(x); log(x [, base]); log10(x); pow(x,y); sqrt(x); 
@@ -33,21 +34,21 @@ acos(x); asin(x); atan(x); atan2(y,x); hypot(x,y);
 cos(x); sin(x); tan(x); degrees(x); radians(x); 
 cosh(x); sinh(x); tanh(x).
 
-The constants pi and e are also available. </_param>
-	    </page>
-	</param>
-	<param name="fofx"     type="string"  _gui-text="Function">exp(-x*x)</param>
-	<param name="fponum"   type="boolean" _gui-text="Calculate first derivative numerically">true</param>
-	<param name="fpofx"    type="string"  _gui-text="First derivative">x</param>
-	<param name="remove"   type="boolean" _gui-text="Remove rectangle">true</param>
-	<param name="drawaxis" type="boolean" _gui-text="Draw Axes">false</param>
-    <effect>
-		<object-type>rect</object-type>
-                <effects-menu>
-                        <submenu _name="Render"/>
-                </effects-menu>
-    </effect>
-    <script>
-        <command reldir="extensions" interpreter="python">funcplot.py</command>
-    </script>
+The constants pi and e are also available.</_param>
+    </page>
+  </param>
+  <param name="fofx" type="string" _gui-text="Function">exp(-x*x)</param>
+  <param name="fponum" type="boolean" _gui-text="Calculate first derivative numerically">true</param>
+  <param name="fpofx" type="string" _gui-text="First derivative">x</param>
+  <param name="remove" type="boolean" _gui-text="Remove rectangle">true</param>
+  <param name="drawaxis" type="boolean" _gui-text="Draw Axes">false</param>
+  <effect>
+    <object-type>rect</object-type>
+    <effects-menu>
+      <submenu _name="Render"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">funcplot.py</command>
+  </script>
 </inkscape-extension>
diff --git a/share/extensions/gears.inx b/share/extensions/gears.inx
index 0ba1a4dfc..5cf4e4c2f 100644
--- a/share/extensions/gears.inx
+++ b/share/extensions/gears.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Gear</_name>
     <id>org.ekips.filter.gears</id>
     <dependency type="executable" location="extensions">gears.py</dependency>
diff --git a/share/extensions/gimp_xcf.inx b/share/extensions/gimp_xcf.inx
index 6d3ff02e7..8f54cd6c0 100644
--- a/share/extensions/gimp_xcf.inx
+++ b/share/extensions/gimp_xcf.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>GIMP XCF</_name>
     <id>org.ekips.output.gimp_xcf</id>
 	<dependency type="extension">org.inkscape.output.svg.inkscape</dependency>
diff --git a/share/extensions/handles.inx b/share/extensions/handles.inx
index e1c3cf9cf..7513b383a 100644
--- a/share/extensions/handles.inx
+++ b/share/extensions/handles.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Draw Handles</_name>
     <id>org.ekips.filter.handles</id>
 	<dependency type="executable" location="extensions">handles.py</dependency>
diff --git a/share/extensions/inkscape.extension.rng b/share/extensions/inkscape.extension.rng
new file mode 100644
index 000000000..b006254d7
--- /dev/null
+++ b/share/extensions/inkscape.extension.rng
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<grammar datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes" ns="http://www.inkscape.org/namespace/inkscape/extension" xmlns="http://relaxng.org/ns/structure/1.0"><start><element name="inkscape-extension"><element name="_name"><text/></element><element name="id"><text/></element><zeroOrMore><element name="dependency"><attribute name="type"><ref name="inx.dependency-type.values"/></attribute><optional><attribute name="location"><ref name="inx.location.values"/></attribute></optional><optional><attribute name="_description"><text/></attribute></optional><text/></element></zeroOrMore><zeroOrMore><choice><ref name="inx.parameters"/><element name="param"><attribute name="name"/><attribute name="type"><value>notebook
+</value></attribute><oneOrMore><element name="page"><attribute name="name"/><attribute name="_gui-text"/><oneOrMore><ref name="inx.parameters"/></oneOrMore></element></oneOrMore></element></choice></zeroOrMore><choice><element name="input"><ref name="inx.io.common"/><optional><element name="output_extension"><text/></element></optional></element><element name="output"><ref name="inx.io.common"/><optional><element name="dataloss"><data type="boolean"/></element></optional></element><element name="effect"><optional><attribute name="needs-document"><data type="boolean"/></attribute></optional><optional><attribute name="needs-live-preview"><data type="boolean"/></attribute></optional><element name="object-type"><choice><value type="token">all</value><value type="token">path</value><value type="token">rect</value></choice></element><element name="effects-menu"><choice><attribute name="hidden"><value type="boolean">true</value></attribute><group><element name="submenu"><attribute name="_name"><text/></attribute><empty/></element></group></choice></element></element><element name="path-effect"><empty/></element><element name="print"><empty/></element></choice><choice><element name="script"><group><element name="command"><ref name="inx.reldir.attr"/><optional><attribute name="interpreter"><choice><value>python</value><value>perl</value></choice></attribute></optional><text/></element><optional><element name="helper_extension"><data type="NMTOKEN"/></element></optional><zeroOrMore><element name="check"><ref name="inx.reldir.attr"/><text/></element></zeroOrMore></group></element><element name="xslt"><element name="file"><ref name="inx.reldir.attr"/><text/></element></element><element name="plugin"><element name="name"><text/></element></element></choice></element></start><define name="inx.reldir.attr"><attribute name="reldir"><ref name="inx.location.values"/></attribute></define><define name="inx.location.values"><choice><value>extensions</value><value>path</value><value>plugins</value></choice></define><define name="inx.dependency-type.values"><choice><value>extension</value><value>executable</value><value>plugin</value></choice></define><define name="inx.io.common"><element name="extension"><text/></element><element name="mimetype"><text/></element><optional><element name="_filetypename"><text/></element></optional><optional><element name="_filetypetooltip"><text/></element></optional></define><define name="inx.parameter"><attribute name="name"><data type="token"/></attribute><optional><attribute name="gui-hidden"><data type="boolean"/></attribute></optional><optional><attribute name="_gui-text"/></optional><choice><group><attribute name="type"><value>int</value></attribute><optional><attribute name="min"><data type="integer"/></attribute></optional><optional><attribute name="max"><data type="integer"/></attribute></optional><choice><empty/><data type="integer"/></choice></group><group><attribute name="type"><value>float</value></attribute><optional><attribute name="precision"><data type="integer"/></attribute></optional><optional><attribute name="min"><data type="float"/></attribute></optional><optional><attribute name="max"><data type="float"/></attribute></optional><data type="float"/></group><group><attribute name="type"><value>boolean</value></attribute><data type="boolean"/></group><group><attribute name="type"><value>string</value></attribute><optional><attribute name="max_length"><data type="integer"/></attribute></optional><choice><empty/><text/></choice></group><group><attribute name="type"><value>description</value></attribute><text/></group><group><attribute name="type"><value>enum</value></attribute><oneOrMore><choice><element name="_item"><ref name="inx.parameter.enum.item"/></element><element name="item"><ref name="inx.parameter.enum.item"/></element></choice></oneOrMore></group><group><attribute name="type"><value>optiongroup</value></attribute><oneOrMore><choice><element name="option"><ref name="inx.parameter.optiongroup.option"/></element><element name="_option"><ref name="inx.parameter.optiongroup.option"/></element></choice></oneOrMore></group></choice></define><define name="inx.parameters"><choice><element name="param"><ref name="inx.parameter"/></element><element name="_param"><ref name="inx.parameter"/></element></choice></define><define name="inx.parameter.enum.item"><attribute name="value"/><data type="token"/></define><define name="inx.parameter.optiongroup.option"><optional><attribute name="value"><text/></attribute></optional><text/></define></grammar>
\ No newline at end of file
diff --git a/share/extensions/inkscape_help_askaquestion.inx b/share/extensions/inkscape_help_askaquestion.inx
index b84cfb357..b7426436c 100644
--- a/share/extensions/inkscape_help_askaquestion.inx
+++ b/share/extensions/inkscape_help_askaquestion.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Ask Us a Question</_name>
     <id>org.inkscape.help.askaquestion</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_commandline.inx b/share/extensions/inkscape_help_commandline.inx
index 3770bc700..bf6f505fd 100644
--- a/share/extensions/inkscape_help_commandline.inx
+++ b/share/extensions/inkscape_help_commandline.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Command Line Options</_name>
     <id>org.inkscape.help.commandline</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_faq.inx b/share/extensions/inkscape_help_faq.inx
index 69e96f6f6..e3f8d0819 100644
--- a/share/extensions/inkscape_help_faq.inx
+++ b/share/extensions/inkscape_help_faq.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>FAQ</_name>
     <id>org.inkscape.help.faq</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_keys.inx b/share/extensions/inkscape_help_keys.inx
index 095827385..0d275b41c 100644
--- a/share/extensions/inkscape_help_keys.inx
+++ b/share/extensions/inkscape_help_keys.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Keys and Mouse Reference</_name>
     <id>org.inkscape.help.keys</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_manual.inx b/share/extensions/inkscape_help_manual.inx
index b330ab317..c6ff67ad2 100644
--- a/share/extensions/inkscape_help_manual.inx
+++ b/share/extensions/inkscape_help_manual.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Inkscape Manual</_name>
     <id>org.inkscape.help.manual</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_relnotes.inx b/share/extensions/inkscape_help_relnotes.inx
index 72e2c3591..c02acc34f 100644
--- a/share/extensions/inkscape_help_relnotes.inx
+++ b/share/extensions/inkscape_help_relnotes.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>New in This Version</_name>
     <id>org.inkscape.help.relnotes</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_reportabug.inx b/share/extensions/inkscape_help_reportabug.inx
index c83d02eff..436bb3816 100644
--- a/share/extensions/inkscape_help_reportabug.inx
+++ b/share/extensions/inkscape_help_reportabug.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Report a Bug</_name>
     <id>org.inkscape.help.reportabug</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/inkscape_help_svgspec.inx b/share/extensions/inkscape_help_svgspec.inx
index 185d91ec0..5483b7eea 100644
--- a/share/extensions/inkscape_help_svgspec.inx
+++ b/share/extensions/inkscape_help_svgspec.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>SVG 1.1 Specification</_name>
     <id>org.inkscape.help.svgspec</id>
 	<dependency type="executable" location="extensions">launch_webbrowser.py</dependency>
diff --git a/share/extensions/interp.inx b/share/extensions/interp.inx
index 58d9cbe93..9e5823579 100644
--- a/share/extensions/interp.inx
+++ b/share/extensions/interp.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Interpolate</_name>
     <id>org.ekips.filter.interp</id>
 	<dependency type="executable" location="extensions">interp.py</dependency>
diff --git a/share/extensions/lindenmayer.inx b/share/extensions/lindenmayer.inx
index 99ce7c097..ebe59b4aa 100644
--- a/share/extensions/lindenmayer.inx
+++ b/share/extensions/lindenmayer.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>L-system</_name>
     <id>org.ekips.filter.turtle.lindenmayer</id>
 	<dependency type="executable" location="extensions">lindenmayer.py</dependency>
diff --git a/share/extensions/lorem_ipsum.inx b/share/extensions/lorem_ipsum.inx
index 164243672..b36ff079e 100644
--- a/share/extensions/lorem_ipsum.inx
+++ b/share/extensions/lorem_ipsum.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Lorem ipsum</_name>
 	<id>com.kaioa.lorem_ipsum</id>
 	<dependency type="executable" location="extensions">lorem_ipsum.py</dependency>
diff --git a/share/extensions/markers_strokepaint.inx b/share/extensions/markers_strokepaint.inx
index d8d18ef98..50c1a1d7e 100644
--- a/share/extensions/markers_strokepaint.inx
+++ b/share/extensions/markers_strokepaint.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
      <_name>Color Markers to Match Stroke</_name>
     <id>org.ekips.filter.markers.strokepaint</id>
 	<dependency type="executable" location="extensions">markers_strokepaint.py</dependency>
diff --git a/share/extensions/measure.inx b/share/extensions/measure.inx
index 9392dfa91..8f2f41159 100644
--- a/share/extensions/measure.inx
+++ b/share/extensions/measure.inx
@@ -1,15 +1,16 @@
-<inkscape-extension>
-    <_name>Measure Path</_name>
-    <id>com.njhurst.filter.measure_length</id>
-	<dependency type="executable" location="extensions">measure.py</dependency>
-	<dependency type="executable" location="extensions">inkex.py</dependency>
-	<param name="tab" type="notebook">
-		<page name="measure" _gui-text="Measure">
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>Measure Path</_name>
+  <id>com.njhurst.filter.measure_length</id>
+  <dependency type="executable" location="extensions">measure.py</dependency>
+  <dependency type="executable" location="extensions">inkex.py</dependency>
+  <param name="tab" type="notebook">
+    <page name="measure" _gui-text="Measure">
       <param name="fontsize" type="int" min="1" max="1000" _gui-text="Font size [px]">12</param>
       <param name="offset" type="float" min="-10000" max="10000" _gui-text="Offset [px]">-6</param>
       <param name="precision" type="int" min="0" max="25" _gui-text="Precision">2</param>
       <param name="scale" type="float" min="1e-8" max="1e10" _gui-text="Scale Factor (Drawing:Real Length) = 1:">1</param>
-    <!--	<param name="orient" type="boolean" _gui-text="Keep text orientation upright">true</param>-->
+      <!--<param name="orient" type="boolean" _gui-text="Keep text orientation upright">true</param>-->
       <!--<param name="unit" type="string" _gui-text="Unit {km|m|cm|mm|in|px|pt}">mm</param>-->
       <param name="unit" type="enum" _gui-text="Length Unit: ">
         <item value="px">px</item>
@@ -20,20 +21,20 @@
         <item value="mm">mm</item>
         <item value="cm">cm</item>
         <item value="m">m</item>
-	<item>km</item>
+        <item value="km">km</item>
       </param>
-		</page>
-		<page name="desc" _gui-text="Help">
-			<_param name="measurehelp" type="description">This effect measures the length of the selected path and adds it as a text-on-path object with the selected unit. The number of significant digits can be controlled by the Precision field. The Offset field controls the distance from the text to the path. The Scale factor can be used to make measurements in scaled drawings. For example, if 1 cm in the drawing equals 2.5 m in the real world, Scale must be set to 250.</_param>
-		</page>
-</param>
-    <effect>
-		<object-type>path</object-type>
-                <effects-menu>
-                    <submenu _name="Visualize Path"/>
-                </effects-menu>
-    </effect>
-    <script>
-        <command reldir="extensions" interpreter="python">measure.py</command>
-    </script>
+    </page>
+    <page name="desc" _gui-text="Help">
+      <_param name="measurehelp" type="description">This effect measures the length of the selected path and adds it as a text-on-path object with the selected unit. The number of significant digits can be controlled by the Precision field. The Offset field controls the distance from the text to the path. The Scale factor can be used to make measurements in scaled drawings. For example, if 1 cm in the drawing equals 2.5 m in the real world, Scale must be set to 250.</_param>
+    </page>
+  </param>
+  <effect>
+    <object-type>path</object-type>
+    <effects-menu>
+      <submenu _name="Visualize Path"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">measure.py</command>
+  </script>
 </inkscape-extension>
diff --git a/share/extensions/motion.inx b/share/extensions/motion.inx
index e26b693b2..c2155a428 100644
--- a/share/extensions/motion.inx
+++ b/share/extensions/motion.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Extrude</_name>
     <id>org.ekips.filter.motion</id>
 	<dependency type="executable" location="extensions">motion.py</dependency>
diff --git a/share/extensions/outline2svg.inx b/share/extensions/outline2svg.inx
index f85e6233e..2713ef444 100644
--- a/share/extensions/outline2svg.inx
+++ b/share/extensions/outline2svg.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Text Outline Input</_name>
     <id>org.inkscape.input.outline</id>
     <dependency type="executable" location="extensions">outline2svg.pl</dependency>
diff --git a/share/extensions/pathalongpath.inx b/share/extensions/pathalongpath.inx
index fb4167fee..4fc7287ff 100644
--- a/share/extensions/pathalongpath.inx
+++ b/share/extensions/pathalongpath.inx
@@ -1,36 +1,33 @@
-<inkscape-extension>
-    <_name>Pattern along Path</_name>
-    <id>math.univ-lille1.barraud.pathdeform</id>
-<dependency type="executable" location="extensions">pathmodifier.py</dependency>
-<dependency type="executable" location="extensions">pathalongpath.py</dependency>
-<dependency type="executable" location="extensions">inkex.py</dependency>
-<_param name="title" type="description">This effect bends a pattern object along arbitrary "skeleton" paths. The pattern is the top most object in the selection. (groups of paths/shapes/clones... allowed)</_param>
-
-<param name="copymode" type="enum" _gui-text="Copies of the pattern:">
-       <_item value="Single">Single</_item>
-       <_item value="Single, stretched">Single, stretched</_item>
-       <_item value="Repeated">Repeated</_item>
-       <_item value="Repeated, stretched">Repeated, stretched</_item>
-</param>
-
-<param name="kind" type="enum" _gui-text="Deformation type:">
-       <_item value="Snake">Snake</_item>
-       <_item value="Ribbon">Ribbon</_item>
-</param>
-
-<param name="space"     type="float"   _gui-text="Space between copies:" min="-10000.0" max="10000.0" >0.0</param>
-
-<param name="noffset"   type="float"   _gui-text="Normal offset" min="-10000.0" max="10000.0">0.0</param>
-<param name="toffset"   type="float"   _gui-text="Tangential offset"  min="-10000.0" max="10000.0" >0.0</param>
-
-<param name="vertical"  type="boolean" _gui-text="Pattern is vertical">false</param>
-<param name="duplicate" type="boolean" _gui-text="Duplicate the pattern before deformation">true</param>
-    <effect>
-<effects-menu>
-<submenu _name="Generate from Path"/>
-</effects-menu>
-    </effect>
-    <script>
-        <command reldir="extensions" interpreter="python">pathalongpath.py</command>
-    </script>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>Pattern along Path</_name>
+  <id>math.univ-lille1.barraud.pathdeform</id>
+  <dependency type="executable" location="extensions">pathmodifier.py</dependency>
+  <dependency type="executable" location="extensions">pathalongpath.py</dependency>
+  <dependency type="executable" location="extensions">inkex.py</dependency>
+  <_param name="title" type="description">This effect bends a pattern object along arbitrary "skeleton" paths. The pattern is the top most object in the selection. (groups of paths/shapes/clones... allowed)</_param>
+  <param name="copymode" type="enum" _gui-text="Copies of the pattern:">
+    <_item value="Single">Single</_item>
+    <_item value="Single, stretched">Single, stretched</_item>
+    <_item value="Repeated">Repeated</_item>
+    <_item value="Repeated, stretched">Repeated, stretched</_item>
+  </param>
+  <param name="kind" type="enum" _gui-text="Deformation type:">
+    <_item value="Snake">Snake</_item>
+    <_item value="Ribbon">Ribbon</_item>
+  </param>
+  <param name="space" type="float" _gui-text="Space between copies:" min="-10000.0" max="10000.0">0.0</param>
+  <param name="noffset" type="float" _gui-text="Normal offset" min="-10000.0" max="10000.0">0.0</param>
+  <param name="toffset" type="float" _gui-text="Tangential offset" min="-10000.0" max="10000.0">0.0</param>
+  <param name="vertical" type="boolean" _gui-text="Pattern is vertical">false</param>
+  <param name="duplicate" type="boolean" _gui-text="Duplicate the pattern before deformation">true</param>
+  <effect>
+    <object-type>all</object-type>
+    <effects-menu>
+      <submenu _name="Generate from Path"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">pathalongpath.py</command>
+  </script>
 </inkscape-extension>
diff --git a/share/extensions/pathscatter.inx b/share/extensions/pathscatter.inx
index b2e568ff4..d75507a6a 100644
--- a/share/extensions/pathscatter.inx
+++ b/share/extensions/pathscatter.inx
@@ -1,34 +1,30 @@
-<inkscape-extension>
-    <_name>Scatter</_name>
-    <id>math.univ-lille1.barraud.pathScatter</id>
-	<dependency type="executable" location="extensions">pathmodifier.py</dependency>
-	<dependency type="executable" location="extensions">pathScatter.py</dependency>
-	<dependency type="executable" location="extensions">inkex.py</dependency>
-	<_param name="title" type="description">This effect scatters a pattern along arbitrary "skeleton" paths. The pattern is the top most object in the selection. (groups of paths/shapes/clones... allowed)</_param>
-
-	<param name="follow" type="boolean" _gui-text="Follow path orientation.">false</param>
-	<param name="stretch" type="boolean" _gui-text="Stretch spaces to fit skeleton length">false</param>
-
-	<param name="space"     type="float"   _gui-text="Space between copies:" min="-10000.0" max="10000.0" >0.0</param>
-
-	<param name="noffset"   type="float"   _gui-text="Normal offset" min="-10000.0" max="10000.0">0.0</param>
-	<param name="toffset"   type="float"   _gui-text="Tangential offset"  min="-10000.0" max="10000.0" >0.0</param>
-
-	<param name="vertical"  type="boolean" _gui-text="Pattern is vertical">false</param>
-	<param name="copymode" type="optiongroup" _gui-text="Original pattern will be:">
-		<_option value="move">Moved</_option>
-      	<_option value="copy">Copied</_option>
-		<_option value="clone">Cloned</_option>
-	</param>
-	<param name="duplicate" type="boolean" _gui-text="Duplicate the pattern before deformation">true</param>
-    <effect>
-	<effects-menu>
-		<submenu _name="Generate from Path"/>
-	</effects-menu>
-    </effect>
-    <script>
-        <command reldir="extensions" interpreter="python">pathScatter.py</command>
-    </script>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+  <_name>Scatter</_name>
+  <id>math.univ-lille1.barraud.pathScatter</id>
+  <dependency type="executable" location="extensions">pathmodifier.py</dependency>
+  <dependency type="executable" location="extensions">pathScatter.py</dependency>
+  <dependency type="executable" location="extensions">inkex.py</dependency>
+  <_param name="title" type="description">This effect scatters a pattern along arbitrary "skeleton" paths. The pattern is the top most object in the selection. (groups of paths/shapes/clones... allowed)</_param>
+  <param name="follow" type="boolean" _gui-text="Follow path orientation.">false</param>
+  <param name="stretch" type="boolean" _gui-text="Stretch spaces to fit skeleton length">false</param>
+  <param name="space" type="float" _gui-text="Space between copies:" min="-10000.0" max="10000.0">0.0</param>
+  <param name="noffset" type="float" _gui-text="Normal offset" min="-10000.0" max="10000.0">0.0</param>
+  <param name="toffset" type="float" _gui-text="Tangential offset" min="-10000.0" max="10000.0">0.0</param>
+  <param name="vertical" type="boolean" _gui-text="Pattern is vertical">false</param>
+  <param name="copymode" type="optiongroup" _gui-text="Original pattern will be:">
+    <_option value="move">Moved</_option>
+    <_option value="copy">Copied</_option>
+    <_option value="clone">Cloned</_option>
+  </param>
+  <param name="duplicate" type="boolean" _gui-text="Duplicate the pattern before deformation">true</param>
+  <effect>
+    <object-type>all</object-type>
+    <effects-menu>
+      <submenu _name="Generate from Path"/>
+    </effects-menu>
+  </effect>
+  <script>
+    <command reldir="extensions" interpreter="python">pathScatter.py</command>
+  </script>
 </inkscape-extension>
-
- 	  	 
diff --git a/share/extensions/perfectboundcover.inx b/share/extensions/perfectboundcover.inx
index f3bb95299..4f3672857 100644
--- a/share/extensions/perfectboundcover.inx
+++ b/share/extensions/perfectboundcover.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
   <_name>Perfect-Bound Cover</_name>
   <id>org.coswellproductions.inkscape.effects.perfectboundcover</id>
   <dependency type="executable" location="extensions">perfectboundcover.py</dependency>
diff --git a/share/extensions/perspective.inx b/share/extensions/perspective.inx
index 1f0d9b141..418d3f8cb 100644
--- a/share/extensions/perspective.inx
+++ b/share/extensions/perspective.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Perspective</_name>
     <id>org.ekips.filter.perspective</id>
 	<dependency type="executable" location="extensions">perspective.py</dependency>
diff --git a/share/extensions/ps_input.inx b/share/extensions/ps_input.inx
index ad458138e..54b2b20f1 100644
--- a/share/extensions/ps_input.inx
+++ b/share/extensions/ps_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Postscript Input</_name>
     <id>org.inkscape.input.ps</id>
     <dependency type="executable">pstoedit</dependency>
diff --git a/share/extensions/radiusrand.inx b/share/extensions/radiusrand.inx
index dcce3bc2c..92fa5cd54 100644
--- a/share/extensions/radiusrand.inx
+++ b/share/extensions/radiusrand.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
    <_name>Jitter nodes</_name>
    <id>org.ekips.filter.radiusrand</id>
        <dependency type="executable" location="extensions">radiusrand.py</dependency>
diff --git a/share/extensions/randompnt.inx b/share/extensions/randompnt.inx
index fa75b7de9..795505f08 100644
--- a/share/extensions/randompnt.inx
+++ b/share/extensions/randompnt.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Random Point</_name>
     <id>org.inkscape.effect.randompnt</id>
     <dependency type="plugin" location="plugins">randompnt</dependency>
diff --git a/share/extensions/randompos.inx b/share/extensions/randompos.inx
index 0c9543071..ca913810e 100644
--- a/share/extensions/randompos.inx
+++ b/share/extensions/randompos.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Random Position</_name>
     <id>org.inkscape.effect.randompos</id>
     <dependency type="plugin" location="plugins">randompos</dependency>
diff --git a/share/extensions/render_alphabetsoup.inx b/share/extensions/render_alphabetsoup.inx
index 4eccecb8d..759cc6581 100644
--- a/share/extensions/render_alphabetsoup.inx
+++ b/share/extensions/render_alphabetsoup.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Alphabet Soup</_name>
     <id>org.ekips.filter.alphabetsoup</id>
 	<dependency type="executable" location="extensions">render_alphabetsoup.py</dependency>
diff --git a/share/extensions/render_barcode.inx b/share/extensions/render_barcode.inx
index 2282b788e..a7f738d41 100644
--- a/share/extensions/render_barcode.inx
+++ b/share/extensions/render_barcode.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
   <_name>Barcode</_name>
   <id>org.inkscape.render.barcode</id>
   <dependency type="executable" location="extensions">inkex.py</dependency>
diff --git a/share/extensions/restack.inx b/share/extensions/restack.inx
index 9e54e3886..687829be7 100644
--- a/share/extensions/restack.inx
+++ b/share/extensions/restack.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Restack</_name>
     <id>org.inkscape.filter.restack</id>
 	<dependency type="executable" location="extensions">restack.py</dependency>
diff --git a/share/extensions/rtree.inx b/share/extensions/rtree.inx
index 55836e056..fec2a4bec 100644
--- a/share/extensions/rtree.inx
+++ b/share/extensions/rtree.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Random Tree</_name>
     <id>org.ekips.filter.turtle.rtree</id>
 	<dependency type="executable" location="extensions">rtree.py</dependency>
diff --git a/share/extensions/rubberstretch.inx b/share/extensions/rubberstretch.inx
index 71b852802..e23d8dfee 100644
--- a/share/extensions/rubberstretch.inx
+++ b/share/extensions/rubberstretch.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Rubber Stretch</_name>
     <id>math.univ-lille1.barraud.spherify</id>
 	<dependency type="executable" location="extensions">pathmodifier.py</dependency>
diff --git a/share/extensions/sk1_input.inx b/share/extensions/sk1_input.inx
index ded9a962f..4a02f94f5 100644
--- a/share/extensions/sk1_input.inx
+++ b/share/extensions/sk1_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>sK1 vector graphics files input</_name>
     <id>org.inkscape.input.sk1</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/sk_input.inx b/share/extensions/sk_input.inx
index e64e8ef0c..a29f8b078 100644
--- a/share/extensions/sk_input.inx
+++ b/share/extensions/sk_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Sketch Input</_name>
     <id>org.inkscape.input.sk</id>
     <dependency type="executable" location="extensions">sk2svg.sh</dependency>
diff --git a/share/extensions/spirograph.inx b/share/extensions/spirograph.inx
index bc2e5354f..84e13c5d6 100644
--- a/share/extensions/spirograph.inx
+++ b/share/extensions/spirograph.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Spirograph</_name>
     <id>org.ekips.filter.spirograph</id>
 	<dependency type="executable" location="extensions">spirograph.py</dependency>
diff --git a/share/extensions/straightseg.inx b/share/extensions/straightseg.inx
index 9052804a1..965b33086 100644
--- a/share/extensions/straightseg.inx
+++ b/share/extensions/straightseg.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Straighten Segments</_name>
     <id>org.ekips.filter.straightseg</id>
 	<dependency type="executable" location="extensions">straightseg.py</dependency>
diff --git a/share/extensions/summersnight.inx b/share/extensions/summersnight.inx
index e08d65fda..db4b83971 100644
--- a/share/extensions/summersnight.inx
+++ b/share/extensions/summersnight.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Envelope</_name>
     <id>org.ekips.filter.summersnight</id>
 	<dependency type="executable" location="extensions">summersnight.py</dependency>
diff --git a/share/extensions/svg2xaml.inx b/share/extensions/svg2xaml.inx
index c189fd413..da621b8f7 100644
--- a/share/extensions/svg2xaml.inx
+++ b/share/extensions/svg2xaml.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>XAML Output</_name>
     <id>org.inkscape.output.xaml</id>
     <output>
diff --git a/share/extensions/svg_and_media_zip_output.inx b/share/extensions/svg_and_media_zip_output.inx
index 6c6efeb45..c6597a03f 100644
--- a/share/extensions/svg_and_media_zip_output.inx
+++ b/share/extensions/svg_and_media_zip_output.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>ZIP Output</_name>
     <id>org.inkscape.output.ZIP</id>
 	<dependency type="extension">org.inkscape.output.svg.inkscape</dependency>
diff --git a/share/extensions/svgz_input.inx b/share/extensions/svgz_input.inx
index ad142d0c9..e3631b738 100644
--- a/share/extensions/svgz_input.inx
+++ b/share/extensions/svgz_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>SVGZ Input</_name>
     <id>org.inkscape.input.svgz</id>
     <dependency type="executable">gzip</dependency>
diff --git a/share/extensions/svgz_output.inx b/share/extensions/svgz_output.inx
index 6460d1bf4..e309bd0f4 100644
--- a/share/extensions/svgz_output.inx
+++ b/share/extensions/svgz_output.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>SVGZ Output</_name>
     <id>org.inkscape.output.SVGZ</id>
     <dependency type="extension">org.inkscape.output.svg.inkscape</dependency>
diff --git a/share/extensions/text_braille.inx b/share/extensions/text_braille.inx
index b78223b3c..ec9bc5b47 100644
--- a/share/extensions/text_braille.inx
+++ b/share/extensions/text_braille.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Convert to Braille</_name>
 	<id>org.inkscape.text.braille</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_flipcase.inx b/share/extensions/text_flipcase.inx
index 0eb168370..f692c8708 100644
--- a/share/extensions/text_flipcase.inx
+++ b/share/extensions/text_flipcase.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>fLIP cASE</_name>
 	<id>org.inkscape.text.flipcase</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_lowercase.inx b/share/extensions/text_lowercase.inx
index 143814956..4b4fd8bc9 100644
--- a/share/extensions/text_lowercase.inx
+++ b/share/extensions/text_lowercase.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>lowercase</_name>
 	<id>org.inkscape.text.lowercase</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_randomcase.inx b/share/extensions/text_randomcase.inx
index 25dbe7d18..52ae34ffd 100644
--- a/share/extensions/text_randomcase.inx
+++ b/share/extensions/text_randomcase.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>rANdOm CasE</_name>
 	<id>org.inkscape.text.randomcase</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_replace.inx b/share/extensions/text_replace.inx
index 323bf0b5e..407b1a56d 100644
--- a/share/extensions/text_replace.inx
+++ b/share/extensions/text_replace.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Replace text</_name>
 	<id>org.inkscape.text.replacetext</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_sentencecase.inx b/share/extensions/text_sentencecase.inx
index dacb2f415..4ad377c52 100644
--- a/share/extensions/text_sentencecase.inx
+++ b/share/extensions/text_sentencecase.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Sentence case</_name>
 	<id>org.inkscape.text.sentencecase</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_titlecase.inx b/share/extensions/text_titlecase.inx
index 23f8779d9..32f4f8298 100644
--- a/share/extensions/text_titlecase.inx
+++ b/share/extensions/text_titlecase.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>Title Case</_name>
 	<id>org.inkscape.text.titlecase</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/text_uppercase.inx b/share/extensions/text_uppercase.inx
index 171e4305e..4ccc6837f 100644
--- a/share/extensions/text_uppercase.inx
+++ b/share/extensions/text_uppercase.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
 	<_name>UPPERCASE</_name>
 	<id>org.inkscape.text.uppercase</id>
 	<dependency type="executable" location="extensions">chardataeffect.py</dependency>
diff --git a/share/extensions/txt2svg.inx b/share/extensions/txt2svg.inx
index 4e70d5ce9..6aea850d1 100644
--- a/share/extensions/txt2svg.inx
+++ b/share/extensions/txt2svg.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Text Input</_name>
     <id>org.inkscape.input.txt</id>
     <dependency type="executable" location="extensions">txt2svg.pl</dependency>
diff --git a/share/extensions/whirl.inx b/share/extensions/whirl.inx
index 927294b53..f68d99d35 100644
--- a/share/extensions/whirl.inx
+++ b/share/extensions/whirl.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Whirl</_name>
     <id>org.ekips.filter.whirl</id>
 	<dependency type="executable" location="extensions">whirl.py</dependency>
diff --git a/share/extensions/wmf_input.inx b/share/extensions/wmf_input.inx
index f004f1617..401657d76 100644
--- a/share/extensions/wmf_input.inx
+++ b/share/extensions/wmf_input.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>Windows Metafile Input</_name>
     <id>org.inkscape.input.wmf</id>
     <dependency type="executable" location="path">uniconv</dependency>
diff --git a/share/extensions/xaml2svg.inx b/share/extensions/xaml2svg.inx
index 2896aad07..366102907 100644
--- a/share/extensions/xaml2svg.inx
+++ b/share/extensions/xaml2svg.inx
@@ -1,4 +1,5 @@
-<inkscape-extension>
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <_name>XAML Input</_name>
     <id>org.inkscape.input.xaml</id>
     <input>
-- 
2.30.2