Looks great on a black board! I have just put it on my 'white' Leopold and I really like it too.
Excuse the awful photograph, I will try not to be lazy and get out a real camera over the weekend.
I had a "doh!" moment just as I started putting on the main alpha keys (I did, F-row and mods first), my keycool has a purple backlight and would look amazing with this set
I will have to try it out over the weekend. If an R2 runs with the option of cyan on dark grey for the alphas I would snap that up no question.