So after going through the DP comics I downloaded from @phantomtype ,which could be found here: http://phantomtype.tumblr.com/post/136170754311/hey-yall
(BLESS YOU FOR FINDING THESE AND SHARING THEM WITH US)
It has shown new or possible things that could be canon.
The ghost zone aparantly has currency
Youngblood has parents in the ghost zone
Danny probably has an abnormally skinny body as Vlad said in “Body Switch’, but then again he could be saying that cause he is so used to his own large body
Box ghost is called Boxy at times and is also a sweet cinnamon roll
It looks like Vlad was supposed to have pupils
I was going to say that they have cable television with there own shows,
but then I remembered that in the episode “ Girls Night Out” she said “Of course he’s a terrible hunter. He can’t even find the tv remote!” when insulting Skulker. So it was already canon.