[Suggestion] Toggle for custom/canon Shiny sprites

[frezgle]

While I appreciate that some fans want certain Shinies "fixed", or made more consistent with their evolutionary lines, I really prefer them as-is (especially with Rares and Epics providing alternatives). Could there be a toggle similar to the Consistent/Animated toggle for Shinies? Referring to those like Gastly, Plusle, Dusknoir, etc.