OS X 10.12.6, NVIDIA GeForce GTX 780M 4096 MB
Broken: 2.79a, 2.79daily, 2.8
Short description of error
Region Background Alpha is not working
Exact steps for others to reproduce the error
If I move slider of alpha for region background in Video Clip Editor editor, alpha is still 1.
Plus one more issue - changing color of Region Background for "Video Clip Editor" affects BG of "graph view" and "dopesheet" view.
EDIT: Previously I thought any Region BG ignores alpha, than I discovered from Pablo's video - we need to check "Region Overlap" under "System" first.
Is it possible to protect from this scenario? Like popup some warning if user try to change alpha with "Region Overlap" disabled? - Enable "Region Overlap" in "User Preferences > System" tab/panel? Thank you