changing structure and add default.jpg

themes/Tokyo-Night/gnome-shell/assets/checkbox-dark.svg

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="24"
+   height="24"
+   fill="#000000"
+   version="1.1"
+   viewBox="0 0 24 24"
+   id="svg4"
+   sodipodi:docname="checkbox-dark.svg"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   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:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     inkscape:zoom="23.125"
+     inkscape:cx="5.2540541"
+     inkscape:cy="11.978378"
+     inkscape:window-width="1920"
+     inkscape:window-height="1012"
+     inkscape:window-x="0"
+     inkscape:window-y="32"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg4"
+     inkscape:showpageshadow="2"
+     inkscape:deskcolor="#d1d1d1" />
+  <path
+     d="m5 3c-1.108 0-2 0.892-2 2v14c0 1.108 0.892 2 2 2h14c1.108 0 2-0.892 2-2v-14c0-1.108-0.892-2-2-2zm12.59 3.5801 1.4102 1.4199-9 9-5-5 1.4102-1.4102 3.5898 3.5801z"
+     style="fill:#e0e0e0"
+     id="path2" />
+</svg>