Cartridge files

Export creates a readable .tynt JSON file with non-empty title, author, description, controls, and source, plus exact format, canvas, and palette metadata.

The editor accepts incomplete local drafts while you work. Export and publication require complete details. Import rejects missing, blank, oversized, or unknown version 1 fields before replacing the active draft.

The format always uses a 160 × 144 canvas and four indexed colors. This strict boundary keeps public cartridges portable and reviewable.