I just made a wallpaper for my dedicated music machine…minimal and renoise themed of course (resolution is 1680x1050 pixels) 
Would look very better if you captured renoise while playing.
Well, you can add a gif animation to your desktop, but it’s too much distracting your attention…
But if you want to include a full animated gif into yours be my guest:
I think my post was misunderstood. I meant something like this capturing renoise while playing:
