Add option to disable server-side window shadows
Please add option (gsettings) to globally disable windows shadows (server-side) drawn by mutter. This would be useful for testing purposes.
We are facing problem problem with test, which checks, that shaped window is rendered correctly by graphics/gui library. Test does this by placing shaped window of one color above another window with different color and checking pixel colors (on screen) at several places. However test fails due to subtle differences in pixel color (from expected one) caused by window shadow.
Bad thing is, that we cannot alter test code and we need to conform under gnome-shell (mutter).