Custom Dev Cards and X Headers

This release focuses on making Dev Cards easier to customize, faster to load, and more reliable to share across profiles, READMEs, and social.

New Dev Card customization and sharing

You can now tailor what appears on your Dev Card and choose from multiple visual styles, so your shared card better matches your profile and where you post it.

• New Dev Card themes, including Classic, Terminal, Aurora, and Minimal, with accent colors and optional animations that respect reduced-motion preferences.
• Selectable Dev Card content, including which technologies and reading stats to show.
• New sharing views for Dev Card, Header, and Embed, with downloads tied to the view you are looking at.
• Export a static X profile header image sized for sharing.

Faster, more reliable previews and exports

Dev Cards should feel snappier in day-to-day use. Rendering was sped up, and public Dev Card profile data is now cached to help previews and downloads load faster.

Sharing is also more dependable across different surfaces. Topic logos are embedded directly into externally shared Dev Cards so SVG embeds do not break when remote images cannot load, and exports now fall back more gracefully when an image cannot be decoded.

Visual polish and readability were refined across cards, including better contrast for streak labels and logo tiles, plus improved alignment and spacing for stats, footers, and branding.

Profile updates via the shared reader, including through the browser extensions, now preserve your Dev Card settings. Technology selections are also preserved when an admin replaces a topic.

Stronger topic branding after approval

Approved topics can now be enriched with missing branding details after identity approval. This helps fill in gaps like missing logos over time, while keeping identity and existing metadata intact.