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Migration notes

Meld is a Flutter-native API with a pure Dart core. Migrate in layers:

  1. Convert endpoint strings to PathDataSource.
  2. Use MeldEngine.plan in asset tooling when a pair is reused often.
  3. Replace frame callbacks with MeldIcon and a controller.
  4. Add a semantic label or explicitly exclude decorative icons.
  5. For font icons, pass static licensed bytes to Meld.sourceFromIconData; a code point alone is not geometry.

The core output is deterministic, but it is not a drop-in replacement for a DOM renderer. Bake transforms and unsupported SVG effects before migration. Keep the original endpoint fixture and compare the canonical path plus the four progress snapshots during rollout.