diff --git a/extensions/fablabchemnitz_grid_perspect2.inx b/extensions/fablabchemnitz_grid_perspect2.inx
index a20f1ae7..d77e0f60 100644
--- a/extensions/fablabchemnitz_grid_perspect2.inx
+++ b/extensions/fablabchemnitz_grid_perspect2.inx
@@ -17,7 +17,7 @@
     <param name="p_divs" type="int" min="1" max="1000" gui-text="Perspective angle divisions">10</param>
     <param name="border_th" type="float" min="0" max="1000" gui-text="Border Thickness [px]">3</param>
     <param name="div_th" type="float" min="0" max="1000" gui-text="Major grid division Thickness [px]">2</param>
-    <param name="div_color" type="color" gui-text="Major grid division color">black</param>
+    <param name="div_color" type="color" appearance="colorbutton" gui-text="Major grid division color">black</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
diff --git a/extensions/fablabchemnitz_render_sudoku.inx b/extensions/fablabchemnitz_render_sudoku.inx
index 9d77bbf3..4b8625e5 100644
--- a/extensions/fablabchemnitz_render_sudoku.inx
+++ b/extensions/fablabchemnitz_render_sudoku.inx
@@ -25,20 +25,12 @@
          <param name="puzzle_size" type="int" min="1" max="1000" gui-text="Puzzle Width(Height)">6</param>
          <param name="puzzle_gap" type="int" min="1" max="100" gui-text="Puzzle Gap">1</param>
       </page>
-      <page name="tab_textcolor" gui-text="Text Color">
-         <param name="color_text" type="color" gui-text="Text color ">0</param>
-      </page>
-      <page name="tab_background" gui-text="Background">
-         <param name="color_bkgnd" type="color" gui-text="Background color">-1</param>
-      </page>
-      <page name="tab_border" gui-text="Border">
-         <param name="color_puzzle" type="color" gui-text="Puzzle Border color">0</param>
-      </page>
-      <page name="tab_boxcolor" gui-text="Box Color">
-         <param name="color_boxes" type="color" gui-text="Box Border color ">0</param>
-      </page>
-      <page name="tab_celllines" gui-text="Cell Lines">
-         <param name="color_cells" type="color" gui-text="Cell Border color">-791621617</param>
+      <page name="colors" gui-text="Colors">
+         <param name="color_text" type="color" appearance="colorbutton" gui-text="Text color ">0</param>
+         <param name="color_bkgnd" type="color" appearance="colorbutton" gui-text="Background color">-1</param>
+         <param name="color_puzzle" type="color" appearance="colorbutton" gui-text="Puzzle Border color">0</param>
+         <param name="color_boxes" type="color" appearance="colorbutton" gui-text="Box Border color ">0</param>
+         <param name="color_cells" type="color" appearance="colorbutton" gui-text="Cell Border color">-791621617</param>
       </page>
    </param>
    <effect>
diff --git a/extensions/fablabchemnitz_sheet_conus.inx b/extensions/fablabchemnitz_sheet_conus.inx
index 37c23ec2..92e9d315 100644
--- a/extensions/fablabchemnitz_sheet_conus.inx
+++ b/extensions/fablabchemnitz_sheet_conus.inx
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
-    <_name>Sheet Metal Conus</_name>
+    <name>Sheet Metal Conus</name>
     <id>fablabchemnitz.de.sheet_metal_conus</id>
-    <param name="units" _gui-text="Units" type="optiongroup" appearance="minimal">
+    <param name="units" gui-text="Units" type="optiongroup" appearance="combo">
         <option value="mm">mm</option>
         <option value="cm">cm</option>
         <option value="in">in</option>
@@ -13,16 +13,16 @@
     <param name="diaCut" type="float" precision="3" min="0" max="10000000000" gui-text="Cut diameter:">100.0</param>
     <param name="heightCone" type="float" precision="3" min="0" max="10000000000" gui-text="Cone Height:">200.0</param>
     <param name="strokeWidth" type="float" precision="2" min="0.001" max="10000000000" gui-text="Line thickness (in units): ">0.4</param>
-    <param name="verbose" type="boolean" gui-text="Draw dimensions.">false</param>
+    <param name="verbose" type="bool" gui-text="Draw dimensions.">false</param>
     <param name="name" type="description" xml:space="preserve">Constructs a flat pattern projection (sheet cutting layout)
 that can be rolled or bent into a cone or frustum (truncated cone).
 If Cut diameter=0 then cone will not be truncated.</param>
-    <param name="strokeColour" type="color" gui-text="Line colour: ">0</param>
+    <param name="strokeColour" type="color" appearance="colorbutton" gui-text="Line colour: ">0</param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
-            <submenu _name="FabLab Chemnitz">
-				<submenu _name="Shape/Pattern from Generator"/>
+            <submenu name="FabLab Chemnitz">
+				<submenu name="Shape/Pattern from Generator"/>
 			</submenu>
         </effects-menu>
     </effect>
diff --git a/extensions/fablabchemnitz_streaks.inx b/extensions/fablabchemnitz_streaks.inx
index 3cf6dbb4..a37b97a9 100644
--- a/extensions/fablabchemnitz_streaks.inx
+++ b/extensions/fablabchemnitz_streaks.inx
@@ -1,42 +1,42 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
-    <_name>Streaks</_name>
+    <name>Streaks</name>
     <id>fablabchemnitz.de.streaks</id>
     <param type="notebook" name="Nmain">
-        <page name="top" _gui-text="Color">
-            <_param name="h" type="description">Fills a box with a texture
-      made of vertical line segments.</_param>
-            <param name="strokeColour" type="color" gui-text="Line colour: ">0</param>
-            <_param name="help" type="description" xml:space="preserve">
+        <page name="top" gui-text="Color">
+            <param name="h" type="description">Fills a box with a texture
+      made of vertical line segments.</param>
+            <param name="strokeColour" type="color" appearance="colorbutton" gui-text="Line colour: ">0</param>
+            <param name="help" type="description" xml:space="preserve">
 	-----------
-      </_param>
+      </param>
             <param name="strokeWidth" type="int" gui-text="Line width: ">2</param>
         </page>
-        <page name="main" _gui-text="Main">
-            <param max="256" name="blur" type="int" _gui-text="Blur">2</param>
-            <param max="1000" name="linno" type="int" _gui-text="# of columns">50</param>
-            <param name="xrand" type="boolean" _gui-text="Lines randomized">true</param>
-            <_param name="help" type="description" xml:space="preserve">-----------</_param>
-            <param name="pagep" type="boolean" _gui-text="Default box to page size?">true</param>
-            <param max="10000" name="cusx" type="int" _gui-text="Custom size x">500</param>
-            <param max="10000" name="cusy" type="int" _gui-text="Custom size y">500</param>
+        <page name="main" gui-text="Main">
+            <param max="256" name="blur" type="int" gui-text="Blur">2</param>
+            <param max="1000" name="linno" type="int" gui-text="# of columns">50</param>
+            <param name="xrand" type="bool" gui-text="Lines randomized">true</param>
+            <param name="help" type="description" xml:space="preserve">-----------</param>
+            <param name="pagep" type="bool" gui-text="Default box to page size?">true</param>
+            <param max="10000" name="cusx" type="int" gui-text="Custom size x">500</param>
+            <param max="10000" name="cusy" type="int" gui-text="Custom size y">500</param>
         </page>
-        <page name="vert" _gui-text="Each column">
-            <param min="1" max="256" name="segLen" type="int" _gui-text="# of segments">8</param>
-            <param name="yrand" type="boolean" _gui-text="Lengths randomized">true</param>
-            <param name="dashp" type="boolean" _gui-text="Use dashes?">true</param>
-            <param name="blankp" type="boolean" _gui-text="Use blanks?">true</param>
-            <param name="dotp" type="boolean" _gui-text="Use dots?">true</param>
-            <param max="1000" name="dots" type="int" _gui-text="Dots per height">100</param>
-            <_param name="h" type="description">This sets the size of a dot relative to
-      the total height. Higher is shorter.</_param>
+        <page name="vert" gui-text="Each column">
+            <param min="1" max="256" name="segLen" type="int" gui-text="# of segments">8</param>
+            <param name="yrand" type="bool" gui-text="Lengths randomized">true</param>
+            <param name="dashp" type="bool" gui-text="Use dashes?">true</param>
+            <param name="blankp" type="bool" gui-text="Use blanks?">true</param>
+            <param name="dotp" type="bool" gui-text="Use dots?">true</param>
+            <param max="1000" name="dots" type="int" gui-text="Dots per height">100</param>
+            <param name="h" type="description">This sets the size of a dot relative to
+      the total height. Higher is shorter.</param>
         </page>
     </param>
     <effect>
         <object-type>all</object-type>
         <effects-menu>
-            <submenu _name="FabLab Chemnitz">
-				<submenu _name="Shape/Pattern from Generator"/>
+            <submenu name="FabLab Chemnitz">
+				<submenu name="Shape/Pattern from Generator"/>
 			</submenu>
         </effects-menu>
     </effect>