Map theme improvements (#1282)

Author: devemux86

vtm-themes/resources/assets/vtm/biker.xml

@@ -4,7 +4,7 @@
     xsi:schemaLocation="http://opensciencemap.org/rendertheme https://raw.githubusercontent.com/mapsforge/vtm/master/resources/rendertheme.xsd">
 
     <!-- This is the 2nd generation OpenGL/VTM "Biker" theme -->
-    <!-- Version 40 12th January 2026-->
+    <!-- Version 41 26th January 2026-->
 
     <!-- Defines LAYERS Menu -->
     <stylemenu defaultlang="en" defaultvalue="normal" id="menu">
@@ -1753,7 +1753,7 @@
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />
         </m>
-        <m k="natural" v="volcano" zoom-min="12">
+        <m cat="mountain_peak" k="natural" v="volcano" zoom-min="12">
             <symbol src="assets:symbols/volcano.svg" />
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />

vtm-themes/resources/assets/vtm/dark.xml

@@ -4,7 +4,7 @@
     xsi:schemaLocation="http://opensciencemap.org/rendertheme https://raw.githubusercontent.com/mapsforge/vtm/master/resources/rendertheme.xsd">
 
     <!-- This is the 2nd generation OpenGL/VTM "dark" theme based on the Biker map theme -->
-    <!-- Version 40 12th January 2026-->
+    <!-- Version 41 26th January 2026-->
 
     <!-- Defines LAYERS Menu -->
     <stylemenu defaultlang="en" defaultvalue="normal" id="menu">
@@ -1753,7 +1753,7 @@
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />
         </m>
-        <m k="natural" v="volcano" zoom-min="12">
+        <m cat="mountain_peak" k="natural" v="volcano" zoom-min="12">
             <symbol src="assets:symbols/volcano.svg" />
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />

vtm-themes/resources/assets/vtm/indigo.xml

@@ -4,7 +4,7 @@
     xsi:schemaLocation="http://opensciencemap.org/rendertheme https://raw.githubusercontent.com/mapsforge/vtm/master/resources/rendertheme.xsd">
 
     <!-- This is the OpenGL/VTM "Indigo" theme based on the Biker map theme -->
-    <!-- Version 40 12th January 2026-->
+    <!-- Version 41 26th January 2026-->
 
     <!-- Defines LAYERS Menu -->
     <stylemenu defaultlang="en" defaultvalue="normal" id="menu">
@@ -1753,7 +1753,7 @@
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />
         </m>
-        <m k="natural" v="volcano" zoom-min="12">
+        <m cat="mountain_peak" k="natural" v="volcano" zoom-min="12">
             <symbol src="assets:symbols/volcano.svg" />
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />

vtm-themes/resources/assets/vtm/motorider.xml

@@ -4,7 +4,7 @@
     xsi:schemaLocation="http://opensciencemap.org/rendertheme https://raw.githubusercontent.com/mapsforge/vtm/master/resources/rendertheme.xsd">
 
     <!-- This is the 2nd generation OpenGL/VTM "light" theme based on the Biker map theme-->
-    <!-- Version 40 12th January 2026-->
+    <!-- Version 41 26th January 2026-->
 
     <!-- Defines LAYERS Menu -->
     <stylemenu defaultlang="en" defaultvalue="normal" id="menu">
@@ -1753,7 +1753,7 @@
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />
         </m>
-        <m k="natural" v="volcano" zoom-min="12">
+        <m cat="mountain_peak" k="natural" v="volcano" zoom-min="12">
             <symbol src="assets:symbols/volcano.svg" />
             <text use="peak-name-caption" />
             <text use="peak-ele-caption" />