Made a mod for this reddit thread to remove colored item backgrounds, but noticed that my method did not apply to Components; they retain their yellowish background highlighting. My method was to edit the alpha channel of item art in records/game/gameiteminfo.dbr to a value of 0.0 (so, XItemColor.a,0.0, and XItemHighlightColor.a,0.0, (wasn’t sure whether highlight was needed or not, did both)), and while this strategy worked for all other item types, it did not apply to Components:
Are Component backgrounds internally configured?