Operating system: Windows 10, 64-bits
Graphics card: Nvidia gtx 1070 8 gb vram
Short description of error
Hello wonderful Blender developers!I have noticed several inconsistencies and bugs regarding UI of the outliner and grease pencil in latest builds.
Toggling stroke color visibility on and off for grease pencil creates black squares on top of the icons that cover them completely:
Exact steps for others to reproduce the error
Made a short video describing the problem in details: