9. Validation messages and fixes

Right-click an asset or folder → Validate, or Tools → Validate Data; saving also checks. Messages go to the Message Log:

Message	Fix
it has no template (card)	Pick a Template (Simple or Full Art).
its Illustration layer has no picture	Set the picture in the Art row (or the deck row's Illustration).
its picture ... is small (W x H)	Use art at least 256 px on its short side (1024 x 1430 is a good size).
its text names {X}, which is neither Name, Description nor one of its fields	Fix the spelling, or add field X to the template.
its fields ... are placed where another field already is	Give each its own Location.
its finish ... is left out	A card shows at most two finishes: remove one.
N layers are on, but a card draws at most 8 (template)	Turn layers off or merge pictures.
it has no table (deck)	Click New Table in the deck.
N cards are named "X"	Rename, or keep one row and raise its Count.
its rarity X isn't in ... (deck row)	Pick one of the deck's rarities, or add X to its Rarities.
Pack messages	Read the pack's Problems line: each says what to fix.