Google Noto color emoji artwork (v2.048), Copyright Google LLC.
Source: https://github.com/googlefonts/noto-emoji/tree/v2.048
The emoji-datasource-google 16.0.0 clean spritesheet contains only Noto artwork; no Apple fallback images.
Noto's README licenses tools and most image resources under Apache-2.0 and fonts under OFL-1.1. Both licenses are included here (Apache-2.0.txt and noto-emoji-OFL.txt).
Emoji metadata and spritesheet assembly: emoji-datasource-google 16.0.0 / iamcal/emoji-data; Copyright (c) 2013 Cal Henderson, MIT (emoji-data-MIT.txt).
The artwork is unchanged apart from packaging as a spritesheet by emoji-data. Autolabel uses the supplied clean sheet unchanged.
https://github.com/iamcal/emoji-data