If you have a shiny scatterbug caught in your region, when you evolve it into a shiny vivillon, do the regional colors change?
Thanks for the help in advance
No, the only difference between shiny Vivillion and regular Vivillion is that the body will be white instead of black. The wing pattern will be the same regardless of it being shiny. Source: https://pokemondb.net/sprites/vivillon As you can see, only the body changes to white, the song pattern stays the same.