I have sometimes files where tags differ a little bit and therefore a tag is correctly shown up as changed.
Sometimes there are just small differences (e.g. typographic vs. typewriter characters, or a missing character) and it is hard for me to find the discrepancy in the Metadata Pane (left vs. right, i.e. Original Value vs. New Value).
It would be nice to have a better comparison between Original and New Value.
It’s not really necessary for me to have a high sophisticated comparison feature (like differences marked).
It might already be very helpful to have a window (to be opened by the context menu) with the values below, favored in a monospaced font and with a bigger font size.