Editing track names in iTunes made difficult by invisibility of text
Looks like a bug to me. I'd report it to Apple Bug Report

Only seems to do it in Album view when the album's background colour is dark enough that the inverted colour used would be light or white. Then as you edit, you get white on white.

In My Music/Album view, you can see against the album background how/why it may choose the highlight colour [not necessarily the best choice, as the edit background is always white].  

In Playlists/Album view you can't see 'why' as the background is always white but it does just the same. It also seems to take a slight swing towards white text compared to the sometimes very light but just about visible colours it chooses in My Music view.

Easiest repro is on an album with no cover image. Does it every time.

Album with purple/yellow predominance as an example…

Music/album view, yellow text


Playlist/album view, yellow becomes white