- Consolidated theme rendering logic into helper functions in `lib/theme_helpers.php`.
- Updated `page.html.php` for both dark and light themes to utilize new rendering functions.
- Introduced `arcgauge` component for SVG arc gauges with dynamic updates.
- Enhanced CSS for gauges to improve layout and styling consistency.
- Added new test suite for smoke testing routes and component rendering.
- Updated index and themes views to dynamically display theme information from configuration.
- Introduced a new portal-light theme with corresponding CSS styles and HTML structure.
- Created a new page template for the portal-light theme.
- Added an icon for the portal-light theme.
- Developed a theme preview page to compare themes side by side, showcasing layout, typography, and color tokens.
- Implemented a gallery for theme selection, allowing users to preview and switch between themes easily.
- Updated CSS for consistent styling across themes and improved responsiveness.