I created this thing with a free wallpaper and based on MetroMumble theme.
In my view its already one of the best out there. If you like it and want something similar I may be inclined to make some others. Preview here: http://i.imgur.com/NnpNswW.jpg
As a side note the welcome message ascii art is now blood red (set on the server) and looks way more awesome
Remember to restart mumble to load it properly or everything will look ugly!
Download here and please comment below!! http://www.o-leary.co.nz/ReaperAlliance.zip