OK, this is simpler than you might think
It is a combination of Galarian evolutions and shinies
First we change the form of your species, (where POKEMON is the species id) to 1 if it is shiny
(If it already has a form 1, then make 1 the lowest number not used!)
MultipleForms.register(:POKEMON, {
"getForm" => proc { |pkmn|
next pkmn.shiny ? 1 : 0 # 1 if shiny, else 0
}
})
You DO NOT have to change any graphics
Next we go to the PBS files and basically copy the pokemon_forms entry for Cubone, and make the changes, but keep the fact that it is form 1
Your evolution will be form 1 upon evolving, but if youre not planning on having multiple forms for the evolution, it won't be a problem
This sounds like a cool concept! Hope this helps!
Swdfm