itch.io

I guess it is possible, but it would be a convoluted proccess.

First you would need to create the image, with the some colors already used on the body images (that's where current heads take their color from).

Then you would need to create a new race to use that head.

It doesn'd seem difficult, and is certainly doable, but there's so much details that anyone would get many, many errors until it would be done.

Depending on avaliable time, I'll try to think on something for future versions.