Then, import the stylesheet for the themes you want to use.

This may vary depending how application is structured, directories or otherwise. For example, if you use a CSS pre-processor like SASS, you may want to import that stylesheet inside your own. These stylesheets can be found in the Quill distribution, but for convenience they are also linked in ReactQuill's dist folder.

Here's an example using style-loader for Webpack, or create-react-app, that will automatically inject the styles on the page: