Check out a video explaining these features here:
https://youtu.be/VMKWUCNgSaQ
Also, here's a list of the main new features:
- Layers can now have custom pivots by dragging the center handle in the transform tool - using parented layers you can now make fully rigged pixel art characters
- Added ability to export selected layer only (trimmed to layer bounds)
- Repeat layer effect added
- Color dropper tool now ignores grid lines and other interface elements
- Added Coloring Style option to Colorize layer effect
- Additional bug fixes and speed improvements
Grab the update wherever you purchased Pixelmash originally (nevercenter.com, Steam, the Mac App Store). Be sure to use the Send Feedback option in the Help menu in the app to tell us what to add/improve/fix next!