Examine source code of Open with IINA

{
  "name": "Open with IINA",
  "version": "3.3.1",
  "description": "Discover & open web-based media inside macOS' IINA media player",
  "homepage_url": "https://sidneys.github.io",
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "{89299b16-7b8d-48c2-8bdf-e9e4f58de3f6}"
    }
  },
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "menus",
    "notifications",
    "tabs",
    "storage",
    "webNavigation"
  ],
  "default_area": "navbar",
  "icons": {
    "48": "icons/extension-icon-48.png",
    "96": "icons/extension-icon-96.png",
    "192": "icons/extension-icon-192.png",
    "1024": "icons/extension-icon-1024.png"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/include/typedefs.js",
        "scripts/include/globals.js",
        "scripts/include/constants.js",
        "scripts/include/context.js",
        "scripts/include/logger.js",
        "scripts/include/utilities.js",
        "scripts/content/content.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "scripts/include/typedefs.js",
      "scripts/include/globals.js",
      "scripts/include/constants.js",
      "scripts/include/context.js",
      "scripts/include/logger.js",
      "scripts/include/utilities.js",
      "scripts/background/include/urlscheme.js",
      "scripts/background/include/notifications.js",
      "scripts/background/include/manage-toolbar.js",
      "scripts/background/background.js"
    ]
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "Open with IINA",
    "default_icon": {
      "16": "icons/toolbar-icon-grayscale-16.png",
      "32": "icons/toolbar-icon-grayscale-32.png",
      "64": "icons/toolbar-icon-grayscale-64.png"
    }
  }
}