few things though, track detail background is not nice! maybe something like dark translucent grey.
would you mind posting any picture with some test and the colouring you had in mind. Also i guess it depends on whether you are using a light skin or not
and a feature request, it would be great to have a interval setting for retrieving artist picture.
it would only be to increase the interval, not reduce it as the artist picture rotation was causing a strain on the artwork hosting web sites