.maxpat JSON Format

The .maxpat is a single JSON object with one top-level key "patcher". UTF-8, no BOM, no JSON comments, no trailing commas, no NaN/Infinity. Max's parser is strict.

Numbers in coordinate fields are floats; in presentation_rect you MUST round to integers (sharp rendering — see m4l-presentation-layout).

1. Top-level patcher object — required keys

Emit all of these. Values shown are safe defaults: