Contact spacing (depth)

Hello! I know that a contact/magnet should not be spaced more than 1/2" from one another, and I'm looking for suggestions for depth. All of more doors sit back about 3/4" from the adjacent trim (+/-). I feel like I need a large shim or something to get the contact & magnet at least somewhat flush with one another. I could go and cut up a bunch of pieces of wood, but that would look sloppy. Is there a spacer that Ring makes or something along those lines? Surely I'm not the only one with this problem.Thanks!