GitHub reactions minimap

Displays reactions as red/green marks in the scrollbar

**GitHub Reactions Minimap** Visualize the signal in long GitHub discussions - instantly. GitHub Reactions Minimap augments issue and pull request pages with a scrollbar overlay that highlights where reactions are happening. Instead of scrolling blindly through hundreds of comments, you get a compact, color-coded map of activity. **How it works** * Adds markers to the scrollbar for every comment with reactions * Colors reflect "karma" so you can quickly spot high-signal or controversial threads * Highlights comment borders using the same color scheme for easy scanning in-page **Why it's useful** * Jump directly to the most relevant or debated comments * Avoid wasting time on low-signal discussion * Get a quick sense of community sentiment across large threads **Features** * Scrollbar minimap with reaction-based markers * Karma-based color coding (positive = green, negative = red) * In-page comment highlighting * Lightweight and fast - no page reloads or heavy processing Designed for developers who live in GitHub and want faster context, better signal, and less scrolling.