Updated gruvbox theme

static/images/gruvbox/background.svg

@@ -28,16 +28,16 @@
      borderopacity="1.0"
      inkscape:pageopacity="1"
      inkscape:pageshadow="2"
-     inkscape:zoom="11.313708"
-     inkscape:cx="99.127532"
-     inkscape:cy="57.982756"
+     inkscape:zoom="2.8284271"
+     inkscape:cx="165.63976"
+     inkscape:cy="121.62237"
      inkscape:document-units="px"
      inkscape:current-layer="layer1"
      showgrid="false"
      units="px"
-     inkscape:window-width="2190"
+     inkscape:window-width="1459"
      inkscape:window-height="1404"
-     inkscape:window-x="1463"
+     inkscape:window-x="3657"
      inkscape:window-y="16"
      inkscape:window-maximized="0"
      inkscape:showpageshadow="true"
@@ -60,7 +60,7 @@
      inkscape:groupmode="layer"
      id="layer1">
     <rect
-       style="color:#000000;overflow:visible;fill:#282828;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.264584;stroke-linecap:round;stroke-dasharray:none;stroke-opacity:1;paint-order:markers stroke fill;stop-color:#000000"
+       style="color:#000000;overflow:visible;fill:#222222;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.264584;stroke-linecap:round;stroke-dasharray:none;stroke-opacity:1;paint-order:markers stroke fill;stop-color:#000000"
        id="rect40644"
        width="67.733337"
        height="67.73333"