HN Heatmap Highlighter Userscript

You can also try these related scripts:

• Privacy Redirector - Redirect social media platforms to their privacy respecting frontends
• 🏷️ UTags - Add usertags to links - Add custom tags or notes to links such as users, posts and videos. For example, tags can be added to users or posts on a forum, making it easy to identify them or block their posts and replies. It works on X (Twitter), Reddit, Facebook, Threads, Instagram, Youtube, TikTok, GitHub, Greasy Fork, Hacker News, pixiv and numerous other websites.
• Hacker News collapsible comments - Reddit style collapsible comments for Hacker News
• Hacker News Author Highlight - Makes the author name more apparent when scrolling through comments.
• Hacker News Search - Adds a simple search box to the top bar of the Hacker News site.