Added footsteps, new tree, various other tweaks

addons/proton_scatter/icons/link.svg

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   height="16"
+   viewBox="0 0 16 16"
+   width="16"
+   version="1.1"
+   id="svg4"
+   sodipodi:docname="LinkButton.svg"
+   inkscape:version="1.2 (dc2aedaf03, 2022-05-15)"
+   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">
+  <defs
+     id="defs8" />
+  <sodipodi:namedview
+     id="namedview6"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     showgrid="false"
+     inkscape:zoom="54.4375"
+     inkscape:cx="7.9724455"
+     inkscape:cy="8.0183697"
+     inkscape:window-width="2530"
+     inkscape:window-height="1050"
+     inkscape:window-x="30"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg4" />
+  <path
+     d="m6 3a5 5 0 0 0 -4.3301 2.5 5 5 0 0 0 0 5 5 5 0 0 0 4.3301 2.5h1v-2h-1a3 3 0 0 1 -3-3 3 3 0 0 1 3-3h1v-2zm3 0v2h1a3 3 0 0 1 3 3 3 3 0 0 1 -3 3h-1v2h1a5 5 0 0 0 4.3301-2.5 5 5 0 0 0 0-5 5 5 0 0 0 -4.3301-2.5zm-3 4a.99998.99998 0 0 0 -1 1 .99998.99998 0 0 0 1 1h4a.99998.99998 0 0 0 1-1 .99998.99998 0 0 0 -1-1z"
+     fill="#8eef97"
+     id="path2"
+     style="fill:#ffffff" />
+</svg>