During July 2025, theli.ua focused on improving UI theme stability and code quality in the helix-editor/helix repository. They addressed a specific issue in the Zenburn theme by correcting the styling of documentation comments, ensuring both block and line comments used the intended 'comment' foreground and bold formatting. This targeted fix, implemented through TOML configuration and theme development skills, enhanced the readability and consistency of documentation rendering within the editor. Although the work involved a single bug fix rather than new features, it demonstrated careful attention to detail and contributed to a more cohesive user experience for theme users.