Roadmap

Implemented

• Import PNG, BMP, TGA, and Aseprite frames and tags from folders and subfolders.
• Pack across multiple pages, trim transparency, repeat edge pixels, and share atlas positions for identical images. Export several scales from the CLI.
• Inspect sprites and animations, open projects in tabs, and report source errors.
• Generate glow and normal maps, use manual effect images, and override effect settings by folder, animation, or frame.
• Build project batches from the CLI, validate sources, watch for changes, cache builds, and report timing information.
• Export engine loaders and common data formats. Replace each output file atomically.

Next

• Fix known bugs, including duplicate asset names, combined memory use, and exports left incomplete after a write failure.
• Add expected-output test cases and check more exports in their target engines.
• Document how each format names frames and records sizes and offsets.
• Test and restore rotated packing and manual page assignment.

Later

• Set page width and height limits separately; add pivots and 9-slice metadata.
• Preserve more Aseprite timing and metadata, and consider other source formats.
• Add import and repack tools, presets, undo and redo, search, and statistics.
• Consider PNG8, WebP, and other compressed image outputs.

Polygon packing, PSD and vector imports, Unity's internal atlas format, and allocating atlas space at runtime remain deferred.