GitHub Rulers is a developer tools chrome extension. it's a free extension , it has 1 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 592 days ago.
This extension adds vertical lines to the GitHub code editor indicating the 0, 80 and 120 character stops
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from github rulers support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of github rulers.
You could click to report abuse of github rulers.