Yes it is, i use Uxstyle for now.

Hello !
I have WSB for some days and nothing work on my windows 10.
Actualy I use the beta and:
-I have to open a theme 5 or 6 times to realy open it.
-testing Aero without modification =black screen.
-testing any themes =black screen.
-The "no black screen" systeme don't work for me (I run it in admin mode).
-I have actualy a black screen that I can not remove so I'm re-instaling windows.

I think i have missed something or I don't know.. I can not find any tuto or something else to begin create theme. Realy sad.

Maybe someone can help me, give me some good links or ressources ? Thanks.