I just thought of this right now, while I am rescanning MP3 tags. I occasionally do this to check for misplaced or renamed files.

I know this is trivial, but is there any way to have a progress indicator for this process? I should be like the "build overviews" overall progress bar, but at the bottom, where it indicates what directories are being scanned....

I'm also waiting for an improved track coloring system, but there are other threads discussing this.