a long list of things that are confirmed as canon in sanders sides:
Logan is afraid of what's at the bottom of the ocean
Roman is absolutely terrified of the dark (and screams like a final girl in a horror movie when he's scared)
The sides can change how the others look
Virgil can in fact control shadows/darkness
Patton made up a game called "patton cake" and it is very messy and confusing to play
Janus is cold-blooded and sheds his scales
Remus and Roman both have sustained long-lasting injuries
Logan can't "duck out" like Virgil did
Logan has a literal "thinking cap" that he wears
Roman and Remus can conjure living things
Virgil has kept/stolen items from both Logan and Janus
Logan and Virgil are great at giving each other gifts
Logan's gifts that he gives are usually some form of money
Virgil hates being babied
Patton has no idea where babies come from
Logan called puns his "forbidden fruit spread" and has actually made several dad jokes on purpose
Both Logan and Roman have fainted over crofters
Virgil cannot skateboard to save his life (but still pretends he can to seem cool)
Roman insults things as his way of showing love, and has in fact made fun of nearly every side
Patton is allergic to cats and Remus is allergic to soap
Remus deliberately attempts to smell bad
Logan said crofters are the only thing that understands him