
/**
* @example
* Prism.languages['css-with-colors'] = Prism.languages.extend('css', {
*     // Prism.languages.css already has a 'comment' token, so this token will overwrite CSS' 'comment' token
*     // at its original position
*     'comment': { ... },
*     // CSS doesn't have a 'color' token, so this token will be appended
*     'color': /\b(?:red|green|blue)\b/
* });
*/
