Special files - OptrixAU/printathome-python GitHub Wiki
There are a few special files you can place in a deck folder.
deck.ini: Controls options regarding repeating your cards and overlap.
mask.jpg / mask.png: Allows you to add a mask to your cards
mask.svg: Allows you to define a cutting mask for a cutter
extractor.svg / extractor[back].svg: Used to extractors multiple cards from single source images.