Looks like there are some on userstyles.org. You can use it with the Stylus extension and adjust as fits your preference. https://userstyles.org/styles/browse?

Looks like there are some on userstyles.org. You can use it with the Stylus extension and adjust as fits your preference. https://userstyles.org/styles/browse?search_terms=hacker%20news https://userstyles.org/styles/browse?search_terms=hacker%20n...