Are dragonmarks arcane or divine magic?

Ember, Ashley, and Leon, stay out.

This is a short question, but important. I’m running a Pathfinder 2e game in Eberron, and a player has unwittingly spread a contagious curse. The mechanics of this curse are that if you cast divine (cleric, Paladin, etc) or occult (bards, warlocks if Pathfinder had them) magic on a cursed target, then they are also affected by the curse. The player went to get his curse healed by the Silver Flame, and it spread to the clergy there and in the Pavilion of the Host.

However then what if a dragonmarked healer like Kurala d’Jorasco shows up? If dragonmarks are arcane then it’d be fine, but if it’s divine or occult… less so. And I could see it going several ways. Important note, sorcerers in that version can be any of the traditions.

Arcane: like if it is magic like a wizard’s. I would assume makeweights are arcane spellcasters, but I guess I don’t know if they even are…

Divine: this would be if the power’s roots in Siberys really matter. It also fits with Jorasco specifically, if the particular marks define the spell school.

Occult: this would be if it was about delving into, well, occult knowledge to learn more. Bardic, aberrant, Hag, and shadow magic are all under this banner.

Primal: nature magic, least likely.

I’d most like to know if there is anything canon or Kanon. Otherwise, I’d love to hear recommendations. I’m leaning toward divine for the sake of story, but I try to use canon material where I can.