There is a minor language error in danish translation in replace cover menu, it says "Replace cover" but it should be "Udskift covet"(Danish)
Thank you! There are a couple more and I've contacted Erik, who updated the Danish translation for the last couple of releases.
It would also probably be "Udskift omslag" — at least this is what I'm seeing used as the translation of cover art in the rest of the localization.
Edit: Erik just replied with an updated translation, which will be included with the next release.