Worked on enhancing Rust-based PNG decoding and encoding within the google/skia repository, focusing on Android integration and improved image processing capabilities. Developed features for robust gainmap support, including both decoding and encoding, to enable end-to-end Android compatibility. Addressed decoding correctness by refining boundary handling, incremental decoding, and runtime backend selection, ensuring stability and accurate stream alignment. Leveraged Rust, C++, and FFI to refactor APIs and support Android-required PNG chunks such as ninepatch and gainmaps. The work emphasized software architecture and codec development, resulting in more maintainable, interoperable image processing components tailored for cross-platform deployment and testing.