Different book editions/formats have different cover image dimensions. In the cover collage (especially after logging audiobooks), the covers can become quite misaligned.

It would be great to either i) add padding to the covers in collage so that smaller books have white spaces around them and collage becomes automatically aligned or ii) top/bottom/center align each row and column of the collage.

I love looking at my cover collages and every time I generate one I wish the covers were aligned...