Examine source code of Video Speed Shortcuts

{
  "manifest_version": 3,
  "name": "Video Speed Shortcuts",
  "short_name": "Video Speed",
  "version": "0.3.3",
  "description": "Control HTML5 video speed on any website with customizable shortcuts.",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Open Video Speed Shortcuts popup",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "content_scripts": [
    {
      "js": [
        "src/content/index.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{94702f88-02ef-4fed-8fd5-997e8cc1efe8}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "resources": [
        "src/content/index.js"
      ]
    }
  ]
}