This library is no longer supported cause it became part of MineOS. This repository exists only for compatibility with old software installers. For any new features and bugfixes go here: https://github.com/IgorTimofeev/MineOS/wiki/GUI-API
If you need documentation for legacy version for OpenOS, go here: https://github.com/IgorTimofeev/GUI/blob/0fadb161469d404d477dd9babfdc9a5aa42ff203/README.md