SJ Paint 0.2.26

Import classic 8-bit BlackIsZero grayscale TIFFs with an explicitly declared unassociated alpha channel. Decoding shares the existing strip codecs, predictor and orientation handling. Unsupported alpha, polarity and mixed-depth variants remain rejected without replacing the current drawing.

Verification: independent Pillow/libtiff fixtures cover all eight orientations, four compression modes, multiple strips and varied alpha. Local codec/native-fixture checks and 122 public import checks passed. CI 38891556492 passed 1,137 browser checks on each platform, 575 hidden Windows checks, 570 isolated Linux checks and 47 Linux installer checks. Each desktop run separately skipped actual AI inference. Windows and Linux archive checksums and identical app payloads were verified.

Native Paint reopening of the new gray-alpha variants remains unverified. Full Microsoft Paint baseline completion is not claimed. AI evaluation remains deferred; no models or runtime installers are bundled.