NOIRADIX Studio & PixelArt v2.1.5

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

Highlights

• Added a PixelArt Import PIX2 action that validates pasted source and opens it in a separate artwork tab.
• Added the official TeaserTrack and AlternativeTo listing badges and updated listing references in the product documentation.
• Corrected the Unity 2D demo link and clarified that Unity sprite slicing and animation creation use the exported .pix2.json metadata and importer.
• Changed the maintenance notice recheck interval from 30 minutes to 3 hours.
• Improved the PixelArt About dialog metadata contrast in light and dark themes.
• Updated both app version displays, cache-busting references, and product specification versions to 2.1.5.

Compatibility and limitations

• No PIX2 grammar, serialization, storage, or compatibility changes. PIX2 1.0 read compatibility remains supported.
• The PIX2 paste-import action relies on the shared parser and PixelArt validation profile. Invalid input is rejected without replacing existing artwork tabs.
• Browser visual/interaction checks were skipped at the user's request for this release checkpoint. See the implementation discussion for the specific unverified browser cases.

Verification

• node tests/run-all.cjs --syntax: passed, 35 production JavaScript files.
• node tests/run-all.cjs: passed, all 20 Node suites.
• node tests/benchmark-performance.js: passed all 8 performance gates; the slowest measured p95 was 4.848 ms for 2.5× scaling of 4,096 pixels.
• git diff --check: passed.
• GitHub Actions runs syntax, all Node suites, performance benchmarks, and all three browser suites on the pushed tag before publishing this release.