Prepare NFT layers that line up

A layer is one selectable piece of the final composition: a background, a shirt, a face, or an accessory. The Generator stacks selected traits in group order and composites them into a local preview.

For a typical PFP-style project, Background sits behind Clothes, Character, and Accessory. Your project can use different groups, but each group should have a clear visual role.

• Export each source as a genuine PNG. JPEG and SVG are not layer inputs for this workflow.
• Use the canonical 256×256 source canvas unless your project explicitly chooses a different canvas.
• Keep transparent pixels transparent. An accidental opaque rectangle can hide every layer beneath it.
• Place artwork at the same coordinates in every file. Do not crop each trait tightly around its visible pixels.
• Keep a consistent z-order and name traits clearly, such as hoodie-purple.png or glasses-round.png.

Required groups need a valid selection. Optional groups may allow None, which is a real virtual choice rather than a missing file. Use that deliberately for accessories or other traits that may be absent.

When importing folders, use one folder per group and place PNG files inside it. Folder names become group suggestions and file names become trait names. Review the proposed mapping before accepting it; the source path is not the project identity.

• Open the source PNGs and check that the canvas is exactly the intended size.
• Inspect corners for opaque fills and edges for unintended halos.
• Confirm every trait belongs to the correct group.
• Remove duplicate files and ambiguous names.
• Keep an untouched copy of your original artwork outside the Generator.
• After import, use the Collection Doctor before generating a large set.