Examine source code of JeeTube

{
  "name": "JeeTube",
  "version": "1.3",
  "description": "YouTube™ for Jee Student",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://*.youtube.com/*"
      ],
      "js": [
        "src/scripts/content_script.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "src/scripts/inject.js"
  ],
  "browser_action": {
    "default_title": "JeeTube Options",
    "default_icon": {
      "16": "assets/icons/16.png",
      "32": "assets/icons/32.png",
      "48": "assets/icons/48.png",
      "128": "assets/icons/128.png"
    }
  },
  "options_ui": {
    "page": "src/ui/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "102.0",
      "id": "{7c94db4e-4f38-410b-9ae2-5e77fa6dbbc5}"
    },
    "gecko_android": {
      "strict_min_version": "113.0",
      "id": "{7c94db4e-4f38-410b-9ae2-5e77fa6dbbc5}"
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "src/scripts/background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "assets/icons/16.png",
    "48": "assets/icons/48.png",
    "128": "assets/icons/128.png"
  }
}