NOIRADIX Studio & PixelArt 2.1.3

Stable maintenance release. PIX2 remains version 1.1, with PIX2 1.0 read compatibility.

Highlights

• Unity 2021.1 and newer use the Sprite Data Provider API for atlas slicing metadata; Unity 2021.2 and newer also register sprite name/file-ID pairs.
• Older Unity versions retain a compile-time fallback using TextureImporter.spritesheet.
• Reimports preserve sprite IDs for unchanged frame names, and generated animation asset paths use Unity's forward-slash convention.
• Fixed the generated importer completion string so exported C# compiles instead of containing literal line breaks inside a string.

Compatibility and limitations

• No PIX2 grammar, serialization or storage format change. PIX2 1.0 read compatibility remains supported.
• The legacy branch intentionally uses Unity's obsolete sprite-sheet API to support older editor versions.
• The repository environment has no Unity Editor, so compiling and exercising the modern and legacy branches inside their target Unity versions remains an external integration check.

Verification

Local syntax and Node suite results are recorded with the release workflow. GitHub Actions runs syntax, all Node suites, performance benchmarks and browser tests before publishing this tag. See the Unity importer compatibility note.