- [ ] Add [code coverage check](https://docs.gitlab.com/ee/user/project/merge_requests/test_coverage_visualization.html) to verify quality of unit tests
- [FXMisc/RichtTextFX](https://github.com/FXMisc/RichTextFX) -> Library for handling rich text and line numbers
- [richtextfx-demos](https://github.com/FXMisc/RichTextFX/blob/master/richtextfx-demos/README.md) -> Examples and demos of how to use RichTextFX, including [Java Keywords Demo](https://github.com/FXMisc/RichTextFX/blob/master/richtextfx-demos/src/main/java/org/fxmisc/richtext/demo/JavaKeywordsAsyncDemo.java)