I wonder if it's possible to support rotating multiple artist pictures as sort of custom gallery. Looks like Steven had spent great effort to make MB retrieve the right one for artist picture, but it's a little wasted since currently it's not possible to re-do it to retrieve different pictures. Sure, I can google pictures, but I noticed that TM gallery shows lots of nice artist pictures that are not readily available by google image search. Hence here is my proposal:
1. Add right-click menu items for artist picture as follows:
"Retrieve another picture" "Save to Artist Picture folder" "Enable Rotate Artist Pictures"
2. When saving artist picture files, MB auto-numbers them for the same artist so that they will rotate in the order they were added.
3. If the user has copied a custom image, "Save to Artist Picture folder" saves the cache as another picture for the same artist.
4. This functionality can be enabled in compact player, artist picture pane in left panel, and TM.