Removed .combobox-entry to better target both types of comboboxes.
Converting to -gtk-gradient to linear-gradient.
Fixed the background-color appearing in random buttons.
Fix for black borders between menu items.
Added support for new GTK client side decorations.
Fixed right click context menu borders.
Merge pull request #5 from iynaix/master

Updated for Gnome 3.12. Thanks @iynaix!