diff --git a/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.inx b/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.inx
index 7aad250..1b991a2 100644
--- a/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.inx
+++ b/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.inx
@@ -146,7 +146,7 @@ Tips:
         <page name="tab_about" gui-text="About">
             <label appearance="header">Contour Scanner And Trimmer</label>
             <label>A utility to scan, flatten, split and trim lines.</label>
-            <label>2020 - 2023 / written by Mario Voigt (Stadtfabrikanten e.V. / FabLab Chemnitz)</label>
+            <label>2020 - 2025 / written by Mario Voigt (Stadtfabrikanten e.V. / FabLab Chemnitz)</label>
             <spacer/>
             <label appearance="header">Online Documentation</label>
             <label appearance="url">https://y.stadtfabrikanten.org/contourscannerandtrimmer</label>
@@ -181,6 +181,8 @@ Tips:
                 <submenu name="Paths - Cut/Intersect/Purge" />
             </submenu>
         </effects-menu>
+       <menu-tip>Find open, contours and self-intersecting contours and checks for a set of other attributes.</menu-tip>
+       <icon>icon.svg</icon>
     </effect>
     <script>
         <command location="inx" interpreter="python">contour_scanner_and_trimmer.py</command>
diff --git a/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.py b/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.py
index 95987eb..4947261 100644
--- a/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.py
+++ b/extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.py
@@ -70,9 +70,6 @@ from inkex.bezier import csplength
 from inkex.paths import Path, CubicSuperPath
 from shapely.geometry import LineString, Point, MultiPoint
 from shapely.ops import snap, split
-from shapely import speedups
-if speedups.available:
-    speedups.enable()
 
 idPrefixSubSplit = "subsplit"
 idPrefixTrimming = "trimmed"
diff --git a/extensions/fablabchemnitz/contour_scanner_and_trimmer/icon.svg b/extensions/fablabchemnitz/contour_scanner_and_trimmer/icon.svg
new file mode 100644
index 0000000..2774adc
--- /dev/null
+++ b/extensions/fablabchemnitz/contour_scanner_and_trimmer/icon.svg
@@ -0,0 +1,72 @@
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