Pathfinder 2e scrolls have precious little information, as far as I can tell. The information on them as Equipment is simply
The traits for a scroll vary based on the spell it contains. A scroll always has the consumable, magical, and scroll traits, plus the traits of the spell stored on it.
and the trait provides even less
A scroll contains a single spell you can cast without a spell slot.
What I’m confused about is "plus the traits of the spell stored on it." Does this include the magic Tradition? Do you need to meet that Tradition in order to cast the spell (or use Trick Magic Item)?