On a Mac, when in icon view, there is a scale in the bottom right corner to scale the size of the icon. It would be nice to be able to do that on a card and in Moodboard mode. The moodboard mode impartially defaults to a very large thumbnail and makes it less easy to view. It should be able to be the size of Pinterest boards or Netflix.

a slider with a - and + side that can be used to adjust how many cards are visible when in card/moodboard view, because just 4 cards in one row seems a little less to me

or if not a slider, there could atleast be 3 options for size of thumbnails: small, medium and large