in char, ur profile picture can only be ASCII art. u can only use max 16 lines and 8 characters per line. so 8 x 16 = 128 maximum characters per profile picture. as of Unicode 17.0, there are 297,334 unicode characters. assuming all profile pictures are unique, if some dude can use 128 maximum characters per profile picture, and there are 297,334 unicode characters, 297,334 x 128 = 38,058,752 possible profile pictures.