From publisher blurb:
RELEASE THE ORBS!
This book presents options for you to incorporate an additional magic option into your Pathfinder Second Edition game. Using orbs (corpuscles of extraplanar energy, free of any ties to a spellcasting tradition), any PC can claim powerful magic effects that grow as they level up. Your PCs can gain access to these orbs through the orb channeler archetype (fun for a dip or a full replacement of your class feats) or through magic items.
The orb channeler archetype pairs well with any class, offering benefits to any build or play style. If you’re looking for a dip into magic, the dedication feat alone offers access to a variety of magical effects. If you want to fully dedicate your PC to orb magic, the archetype includes enough feats to replace all of a PC’s class feats.