Prettier settings tweaks is a Chrome add-on developed by ryanpcmcquen that allows users to customize the indentation and arrow function formatting in the popular code formatting tool, Prettier. This add-on modifies the default settings of Prettier's online playground (prettier.io/playground/) by changing the indentation to 4 spaces and adding parentheses to all arrow functions.

With Prettier settings tweaks, developers can easily configure Prettier to match their preferred coding style. By default, Prettier uses 2 spaces for indentation and does not include parentheses in arrow functions. However, this add-on provides a convenient way to modify these settings without having to manually edit the code.

Prettier settings tweaks is an open-source add-on and the source code can be found on the developer's GitHub repository. It is available for free on the Chrome Web Store, making it accessible to developers who use Prettier for code formatting.