gears: Make window transparent
gears: Make window transparent

We need this for the window decorations.

Gnurou/weston,xorgy/weston,giucam/weston,krezovic/weston,udoprog/weston,Fantu/compositor-spice,kwm81/weston,eyolfson/weston,xorgy/weston,Gnurou/weston,mchalupa/weston,mchalupa/weston,kwm81/weston,jonnylamb/weston,sir-murray/weston,Fantu/compositor-spice,Tarnyko/weston-xdg_surface_present,krezovic/weston,giucam/weston,Fantu/compositor-spice,udoprog/weston,jonnylamb/weston,sir-murray/weston,eyolfson/weston,Tarnyko/weston-xdg_surface_present