Stylus is a fork of Stylish that can be used to redesign the web. The objective in creating Stylus was to remove any and all analytics, and return to a more user-friendly UI. This is why we named the extension with an "us" ending, as in the actual users.
Berry - Dark Browser
Automatically make all websites dark for peaceful browsing.
Berry is the iPhone and iPad browser that automagically makes all websites dark, blocks ads/trackers, increases battery life, and much more. Berry even includes a Today widget and dark keyboard that can be used in any app.