Examine source code of Bitclout Darkmode

{
    "manifest_version": 2,
   
    "name": "Bitclout Darkmode",
    "version": "0.1.0",
    "description": "Darkmode extension for bitclout",
   
    "content_scripts": [{
      "css": ["styles.css"],
    //   "js": ["content.js"],
      "matches": ["https://bitclout.com/*"]
    }]
   
  }