Guanajuato has released a theme called neoblue, this theme is based on a clean style, in blue tones, This theme is fully compatible with xoops 2.2 and include language files in spanish and english. You can download this theme here: http://www.neoideas.net/xoops/downloads/neoblue.zip
This is a little screenshot of this theme:
Enjoy it. I hope you like it, I will create more themes for xoops.