As the title says, I'd love to be able to know the size of a particular artwork image when tagging an album/song. I know the dimensions are already visible, but sometimes a 1000x1000 image is 250kb and sometimes it's 2.5mb. This can make a significant difference when tagging multiple files.
If the file size was easily visible in the tagging window, it would make my tagging jobs just that much faster.
I edited a screencap of the window I'm referring to with an example of where the file sizes could be displayed in red text.