https://github.com/jwharm/java-gi-examples/tree/main/CodeEditor <img width="881" height="745" alt="Image" src="https://github.com/user-attachments/assets/9e1de436-3e42-4fd7-9ec9-346a4f8f8a57" />
https://github.com/jwharm/java-gi-examples/tree/main/CodeEditor