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Problem
Brush tool (rectangle showed when drag/zooming) is not visible on some backgrounds (white, etc.) - as seen on second image.
Proposed Changes
User can config drag color and opacity.
On black background - Default option (aliceblue, opacity: 0.1):
On white background - Default option (aliceblue, opacity: 0.1):
On white background - user option (#003b6f, opacity: 0,2):
Checklist