tweak color scheme and window buttons

common/unity/window-buttons/minimize_pressed.svg

@@ -14,7 +14,7 @@
    id="svg4306"
    version="1.1"
    inkscape:version="0.91 r13725"
-   sodipodi:docname="minimize_focused_pressed.svg"
+   sodipodi:docname="minimize_pressed.svg"
    style="enable-background:new">
   <defs
      id="defs4308">
@@ -81,9 +81,9 @@
      borderopacity="1.0"
      inkscape:pageopacity="1"
      inkscape:pageshadow="2"
-     inkscape:zoom="11.313709"
-     inkscape:cx="9.1908305"
-     inkscape:cy="9.2459508"
+     inkscape:zoom="45.254834"
+     inkscape:cx="12.734727"
+     inkscape:cy="10.911658"
      inkscape:document-units="px"
      inkscape:current-layer="layer1"
      showgrid="true"