Dark Mode
The theme ships with runtime dark mode (built on CSS variables — no rebuild needed to switch). Four strategies are supported, controlled by color_mode:
PWA
The theme can generate the manifest.json and Service Worker (sw.js) required by Progressive Web Apps, enabling "Add to Home Screen", offline access, and static asset caching.
Accessibility
Back-to-Top Button
Custom Fonts
Some areas of the theme use third-party CJK fonts for design. Because CJK font files are large, the theme extracts and packages only the glyphs actually used into a subset font.
Security Policy
The theme ships a Content Security Policy (CSP) plus two privacy policy headers, providing a browser-level defense line for static hosting (GitHub Pages, Vercel, etc.). Enabled by default.
Asset Fingerprinting
Automatically appends a content hash (?v=xxxxxxxx) to the theme's CSS / JS / image / font references, enabling "permanent strong caching + automatic invalidation". Enabled by default.