Replace CSS content substitution with theme-specific navbar background images to ensure WebKit repaints the logo when the system color scheme changes.
Hide the upstream image while preserving its layout dimensions, and use selectors that prevent Gitea's navbar hover styles from clearing the custom logo.
Import upstream Gitea light and dark themes so new defaults and syntax styles remain compatible across upgrades. Replace the custom navbar template with CSS-based logo overrides and remove redundant Chroma and CodeMirror assets.
Add theme color-scheme metadata, correct relative asset paths, apply CSP nonces to analytics scripts, and document installation, compatibility, upgrade, and licensing requirements.
cole-maxwell1