Theme CSS from Images

For each new content page with a hero image, extract the palette and use it for that page's accent colors — content-aware theming.

In React/Vue, automate this: when uploading a banner image, extract colors and update the CSS custom properties for that section's theme.

The percentages help choose roles: the most dominant color = background tint, second = accent, smaller % colors = highlights or secondary actions.

For album-art-based theming (like Spotify or Apple Music), extract from cover art to generate the matching player UI palette.