Lottie4J 1.2.0: dotLottie Support, Marker Playback, Cropping, and a Big Speed Boost

Lottie4J 1.2.0 is released with several major additions. The headline feature is support for the .lottie container format (a ZIP-based format that bundles animations, images, and a manifest), loadable via two new API methods. The player gains marker-based playback via play(startMarker, endMarker), cropping support, and proper resizing. Performance is significantly improved through reduced rendering passes and metadata caching, with one animation jumping from 20–30 FPS to ~50 FPS. A new adaptive rendering toggle trades sharpness for speed. Core model improvements include merge/modifier shapes, blend modes, spatial bezier interpolation, and missing model fields. The library also upgrades to Jackson 3, which changes the group ID from com.fasterxml.jackson to tools.jackson. Debug tooling has been refactored and the automated visual comparison test now supports .lottie files.