Being able to select a different die style for a wild die would be cool. The final roll indicates the wild (blue) die is the selected roll in chat, but it would be cool to see the wild die bouncing around the chat box.
Maybe this can be made for Savage Worlds. The SWADE code knows which die is the wild die, and the underlying system can change dice based on damage (at least in 5e).
So this may be possible.
I'll add it to my ToDo list.
I added this to idea informer
Set Wild Die Style