[UlfSchmidt]

This is technically of course possible, but not really desired as the aspect ratio should be kept to not have weird stretch effects. This is visually pretty visible for faces and logos. So, either aspect fill (= filling whole frame) or aspect fit (= expand until frame borders are reached) is the solution to go for. How does Kodi UI show these covers? Can you possibly share some screenshots which allow comparison?

I understand that you switched to aspect fill for the app. This helps easily for the rounded corners issue, but introduced the unwanted cut offs in my case. For Kodi’s own UI, I think it depends on the skin you are using. My skin always keeps the aspect ratio within the given frames, as it was previously also the case in the app.

If necessary, I can provide some good and some bad examples tomorrow…

Edit: seeing your edit now, I confirm that detail info screens and Now Playing do not suffer from my issue, these work perfect! Maybe (I cannot estimate the effort) this could be the way to please @amasephy and me