Wildcard images - random on drop, all creatures the same

[MrZwij]

It looks like there is already support for multiple/wildcard images inside a single swarm.

I would love to see another option, probably in the prototype token settings, so that when I creature is wildcarded, it:

1. Selects a single image from the wildcard options
2. All creatures in the swarm are that image
3. Can be changed by the GM to another wildcard choice, either through default Foundry or using modules such as Token Variant Art and Token Wildcard HUD.

My use case: I have bloody and non-bloody quipper (piranha) images. I would like to be able to change the non-bloody to bloody once combat gets going.