Larger Album Cover Art?

[roadworrier]

I can't figure out how to get larger album cover art. I have the playlist over on the right like I want it, and then over on the left there's the cover art the size of a postage stamp. I want really only to see big cover art on the left and the playlist on the right. But I can't figure out how to do it. (The art itself is embedded in the .flac file, and is 1000x1000 pixels, so it should be able to be much bigger than a postage stamp.) [Oh, I'm on Windows now, though sometimes I do use Mac]

Example:

Thanks.