Colorific is described as 'One-click color inversion, brightness scaling and hue filtering for entire web pages. Adapt web content for reading, saving, printing or beaming' and is an app in the web browsers category. There are 2 alternatives to Colorific for a variety of platforms, including Mozilla Firefox, Mac, Windows, Linux and iPhone apps. The best Colorific alternative is Dark Reader, which is both free and Open Source.
This eye-care extension enables night mode creating dark themes for websites on the fly. Dark Reader inverts bright colors making them high contrast and easy to read at night.
Dynamically load stylesheets in Firefox from plaintext files in your profile.
superUserContent is a simple Firefox plugin that creates a new directory in your profile's chrome directory called userContent.css.d. You can use this directory as a runtime path for css styleshee.
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