Ayu Dark Colorscheme for Zen Browser (PRs for Ayu Light and Mirage ports would be noice)
Find the profile-root by visiting about:profiles
In your browser profile-root/chrome/zen-themes directory, create a new folder containing the colorscheme css.
In the profile-root/zen-themes.json file, add a fake entry for this colorscheme, by duplicating any other zen-mod and changing the name and folder.
In the profile-root/chrome/zen-themes.css file, duplicate any of the import statements and add in the path for the colorscheme css, also change the comments
