Every time I upload a profile picture as .png, twitter converts it to a .jpg with compression artifacts. This is the picture I’m currently trying to use. I’ve tried versions with smaller dimensions, larger dimensions, with and without transparency - all have the same problem.
I see other users with profile pictures that are .png, many of whom have larger dimensions and are twice the file size. Forgive me if I’m missing something; I’ve looked but I can’t find any other instances of this problem occurring.