Nothing happens with --osd-back-color

[tupo2]

Works with --osd-color and --osd-border-color but nothing with --osd-back-color
e.g. mpv --osd-back-color='#FF0000'

Linux X11
mpv v0.40.0

[guidocella]

https://mpv.io/manual/master/#options-sub-border-style

[tupo2]

--profile=box fix the issue.