Darker Medium applies a customizable dark theme to *all* medium formatted stories. You can customize the header background, main accent color, highlight color and link styles separately from the option menu. No matter the domain, if a site is using Medium, it will get a dark theme; that is the main advantage over Stylus and Stylish.
TL;DR for Medium. Just hover over any Medium post to view its Top Highlight.
Table for Medium is a tool to easily embed spreadsheets and tables in your Medium posts.
Medium TOC is an easy way to add a table of contents to your medium article. Just enter a link to the article and hit go, and your contents will be generated. Then, just copy and paste the table of contents into your Article.
Medium.com is a cool site. But their sharing widget and sign up bars are super annoying. My Refined Medium Chrome & Firefox extension removes them so you can focus on the articles.