Added layer menu and layer list

data/icons/layer.svg

@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="32"
+   height="32"
+   viewBox="0 0 8.4666666 8.4666666"
+   version="1.1"
+   id="svg1"
+   inkscape:version="1.4.2 (ebf0e940d0, 2025-05-08)"
+   sodipodi:docname="layer.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="px"
+     showgrid="true"
+     inkscape:zoom="23.020096"
+     inkscape:cx="4.2788701"
+     inkscape:cy="15.768831"
+     inkscape:window-width="3440"
+     inkscape:window-height="1354"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1">
+    <inkscape:grid
+       id="grid1"
+       units="px"
+       originx="0"
+       originy="0"
+       spacingx="0.26458333"
+       spacingy="0.26458333"
+       empcolor="#0099e5"
+       empopacity="0.30196078"
+       color="#0099e5"
+       opacity="0.14901961"
+       empspacing="5"
+       enabled="true"
+       visible="true"
+       dotted="true" />
+  </sodipodi:namedview>
+  <defs
+     id="defs1" />
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="m 4.233333,0.79374996 3.175,1.58749994 -3.175,1.5874998 -3.1749997,-1.5874998 z"
+       id="path1" />
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="m 1.0583333,4.233333 3.1749997,1.5875 3.175,-1.5875"
+       id="path2" />
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="m 1.0583333,6.0854163 3.1749997,1.5875 3.175,-1.5875"
+       id="path3" />
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="M 1.0583333,4.233333 2.6458332,3.439583"
+       id="path4" />
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="m 7.408333,4.233333 -1.5875,-0.79375"
+       id="path5" />
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="m 1.0583333,6.0854163 1.5874999,-0.79375"
+       id="path6" />
+    <path
+       style="opacity:1;fill:none;fill-opacity:0;stroke:#000000;stroke-width:0.66145833;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none"
+       d="m 7.408333,6.0854163 -1.5875,-0.79375"
+       id="path7" />
+  </g>
+</svg>