The latest firmware (v1.18) still doesn’t take advantage of the larger ( 128 x 128 ) display of the Clip Sport (over the Sansa Clip Zip_'s 96 x 96 _). The album art is actually smaller, reduced from 96 x 96 (overlayed) to only 52 x 52.
This could be easily handled, within the current design.
( All images are diagrammatic, in actual pixel representation. )
Clip Sport - track play - v1.18 (current):
background 84 x 84, album art 52 x 52
standard view (album/CD) - square aspect ratio
background 100 x 84, album art 80 x 80
standard view (single/CD) - closer to 8:7 aspect ratio
background 100 x 84, album art 94 x 80
This could easily be added, for the next firmware update.
Then we could also have ‘full screen’ view, like for the Sansa Clip Zip.
large view (album/CD)
background 128 x 110, album art 110 x 110
large view (single/CD)
background 128 x 110, album art 128 x 110