![](https://sun9-42.userapi.com/impf/7hPJWkFRwrUarJ20bmH9KRwUz4D15TAP24iOhg/DAPG1GjMQsE.jpg?size=720x1280&quality=96&sign=9696be2dc2f7bda81f5dc1f2a1d14926&type=album)
There was a headcanon that a pony with strong magic (or a difficult fate is destined for them) has a cutie mark "growing" in patterns on the body
One day I saw the concept of a Twilight with such a pattern, and that's it