These are my headcanons for the sides
Remy and Emile are sides to me and you can't change that soooo.

Logan
-Is affected by mental disorders (not anxiety)
-When he gets super tired/passionate/mad his eyes darken. The more tired/passionate/mad he is the darker his eyes get
-Left Brain
-Trans FTM
Deceit
-Name is Cassidy or Caz
-Has a snake tongue
-Is colourblind
-Left Brain
-Wishes they were a snake(AU)
-Cannot provide body heat for themselves
-can only cry out of one eye(the one on the nonscale side)

Patton
-Eyes turn into hearts when he sees something he loves/likes
-has a book FULL of puns
-Right brain
-can fucking meow like a cat

Virgil
-Eyes are Purple
-Left Brain
-cant sit on chairs like a normal person
-fidgets with his sleeves

Roman
-Eyes turn red when he is mad(like super mad) or super creative
-cracks his fingers as a fidget
-Right Brain

Emile
-Eyes sparkle when he talks about something he is passionate about
-Right Brain
-finger tapping and pen clicking are his fidgets
-Trans FTM(AU)

Remy
-has no real iris/pupil,its just white
-Thad why he wears sunglasses
-Adamsgender(Some AUs only)
-lives off Starbucks