Examine source code of Studio Modifier

{
  "manifest_version": 2,
  "name": "Studio Modifier",
  "author": "CatAClock",
  "version": "1.0.3",
  "description": "Customizes the YouTube Studio to remove all stats and competitiveness. This makes posting YouTube videos a lot more fun.",
  "icons": {
    "64": "Icons/Icon.png"
  },
  "browser_action": {
    "default_icon": "Icons/Icon.png",
    "default_title": "Studio Modifier",
    "default_popup": "Popups/Main.html"
  },
  "options_ui": {
    "page": "Options/Main.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://studio.youtube.com/*"
      ],
      "js": [
        "ContentScripts/StudioModify.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ffb77997-6198-4cfc-bc17-dd0f51529090}"
    }
  }
}