May 2025 focused on user-centric UI improvements and frontend modernization for LenaSYS (HGustavs/LenaSYS). Key outcomes include a responsive header/navigation with improved visibility and a structured burger menu that includes a MotD button to surface server messages from the main navigation, enhancing discoverability and mobile usability. Implemented MOTD validation error handling by introducing a dialogid parameter and ensuring an error display element is initialized for feedback on validation failures. A broad frontend modernization effort migrated from jQuery to vanilla JavaScript, adopted native JSON parsing, and performed CSS and formatting cleanup to reduce technical debt and improve maintainability. Some instruction/feedback visibility toggles were temporarily reverted to jQuery to preserve UX during the migration, illustrating careful change management. Overall, these changes improve user experience, reliability of MotD messaging, and the maintainability and performance of the UI while preserving existing functionality.

April 2025 — LenaSYS front-end: Key features delivered, major fixes, and impact. Key features delivered: - UI Styling Centralization: migrated inline CSS into dedicated CSS files for dropdowns, dialogs, overlays, and modals (codeviewer, Edit Content dialog, Edit Example window, Pick Template window, Underlay, Preview window, error messages). This standardizes visuals and reduces maintenance effort. - JavaScript Modernization: Removed jQuery dependency by replacing DOM manipulation with native JavaScript in sectioned.js (scroll handling, canvas link box visibility, highscore display). - Navigation and Menu Enhancements: Added a hamburger menu, Font Awesome icons, and a role-aware header that shows/hides items based on user roles and page context. Major bugs fixed: - Resolved styling conflicts and regressions by centralizing CSS and removing CSS that overwrote the original styles. - Stabilized UI behavior after removing jQuery dependency with targeted fixes in sectioned.js. Overall impact and accomplishments: - Reduced technical debt, improved maintainability, and created a scalable foundation for UI across LenaSYS. Enhanced user experience through consistent visuals and role-aware navigation, with a leaner dependency footprint and improved performance. Technologies/skills demonstrated: - CSS architecture and modularization; vanilla JavaScript refactoring; responsive design; role-based UI; Font Awesome integration; regression cleanup.