HEIC decoding uses heic-to 1.5.2 (LGPL-3.0), including libheif 1.22.2 and its HEVC decoder dependencies. Distributed separately and loaded on demand without modification.
Licenses: /assets/vendor/heic-to-LICENSE.txt and /assets/vendor/GPL-3.0.txt
Source and build instructions: https://github.com/hoppergee/heic-to/tree/v1.5.2
libheif source: https://github.com/strukturag/libheif/tree/v1.22.2
You may replace assets/vendor/heic-to-1.5.2.js with a compatible modified build. This notice does not restrict modification or reverse engineering for debugging these libraries.