Do I know you? We really are pretty nice. GNUstep can be themed very easily. You are more than welcome to help, ESPECIALLY to make more themes.
See the link below... This is GNUstep using the rik theme... Just one of the many ways the project can look:
https://user-images.githubusercontent.com/12986802/33520300-...
Gregory Casamento GNUstep Maintainer