Do you know Cerulean Diamond?
Yeah that pony. ⬆️
Well I found my trans half brother’s Deviantart page and found the pony! Her name is actually…
Doodle Dot!
https://www.deviantart.com/extravaganzadynamite/art/Doodle-Dot-212384357
So from this day forth, she shall be referred to as Doodle Dot. And her cutie mark is no longer a diamond.