In March 2026, Simon Kabelis developed and integrated a new dark theme, “A Touch of Lilac,” for the zed-industries/extensions repository, focusing on enhancing UI personalization and accessibility. The work involved porting the theme from VS Code and providing two variants—one with italic syntax highlighting and one without—to accommodate different user preferences. Simon applied UI/UX design principles and front end development skills, using TOML for configuration to ensure maintainability and consistency across the product. The feature was delivered without introducing regressions, demonstrating careful attention to code stability and user experience, though the scope was limited to a single feature addition.