I’d argue that Kentucky should be green. Sure the ‘y’ becomes an ‘i’, but it’s still pronounced like Kentucky±an so the difference is purely orthographic.
And changing a final ‘y’ to ‘i’ is extremely common when adding a suffix. (cf. happiness, beautiful, angrier)
Wyomingite? Doesn’t look right to me. Wyominger seems more logical.
Tell me you’re Indianan without telling me you’re Indianan.
If you want Hoosier on there then you have to put stuff like Appalachian too.
Edit - on rereading this it looks a bit harsh, it was meant with a wink and a smile.
Why is there an extra ‘i’ in Louisianan?
New hampshite.