So, I've bought this program on whim and am now thrilled with it. It does what I want without any overblown features.
I'm no friend of boxarts, but Steam and its community offers quite a selection of game banners, so I decided to use those. I've run into two problems so far:
I can't set another image as Front, so I have to navigate into the games folder and replace it manually with another Front.xxx file. Maybe a possiblity to replace the front image and one to download banners from steam?
There are gaps in the list, that i can't seem to close (see attached image). A bit more extensive spacing options would be nice
But what I'm missing most is Tags or Categories.
I think definable Tags that can be added to games in the Details view, similar to Steam, are a good idea. Currently I'm tagging my games by putting [MyTag] in the Version field and using a custom filter and the Contains option.
Also some minor tidbits:
A button at the top-right to toggle the sidebar
Deselecting the current game by clicking at the background
A option for a single color background