Having recently got a nitrokey, I discovered that the icon for a key with a card is the wrong size, which makes the full line in the keylist in GPA a different size from other lines. The attached patch should fix this (handling the cardkey icon the same as other keys in the keylist), patch appliable simply using git am.

(For some reason I have had some great problems with mail not getting to the gnupg-devel mailinglist, which I tried before reporting here.)