I've pushed up a change that removes the background hex behind each group logo. McrFRED and TorFRED had both included it in their logo file already, and it looked a little wonky, so it made sense to kill it. Additionally, this will let groups be more creative about color, texture, etc. in their group's hexagon.
As a result, the logos are now being sized considerably larger: 250px x 250px, and are blurring. We should get higher-res assets in place for all the group logos, plus a hexified version of the BfloFRED logo.
I'd also like to ask McrFRED to only upload the small hex portion of their logo (the mcr bit). In theory, by having the individual hexes from every group, at some point in the near future we can replicate the linking hexes with CSS on every FRED group page. Plus some other cool effects.