couple of little questions?

1.in files mode the size of media is put
how can you make this hidden?
if not can that be changed in next update

2.and i wanted for the shortcuts automatic thumbnail in music root section .
but naming folder.jpg doesn't work there here.how come?
i can choose thumbnail manually but this take harder to load image.for some reason

2 edit. i know why it was loading to long the thumbnail was to big of a size