On a windows machine IIRC the colors would be controlled by OS.
Oh, I hadn't thought of that one.
There seem to be system theme management going on inside a hintwindow (I do not know if it is active by default) so you might be right there.
In which case, 2 out of 3 is also not bad though I understand that is not what TS is looking for :-)
I rather wait with further suggestions until all specs are on the table... TS seem to have a habit of adding additional requirements as suggestions go along and I am not in the mood for these games with crystal balls right now.
AFAIK there is not a ready to go component/solution that does exactly as TS seem to want and I am currently trying to avoid suggesting to use a video playback component to literally provide what TS asks for