Examine source code of Blocksly

{
  "name": "Blocksly",
  "version": "2.0.0",
  "manifest_version": 2,
  "description": "__MSG_description__",
  "default_locale": "en",
  "permissions": [
    "http://*/*",
    "https://*/*",
    "ws://*/*",
    "wss://*/*",
    "tabs",
    "storage",
    "alarms",
    "unlimitedStorage",
    "webRequest",
    "webRequestBlocking",
    "webNavigation"
  ],
  "icons": {
    "16": "icons/enabled/icon16.png",
    "48": "icons/enabled/icon48.png",
    "128": "icons/enabled/icon128.png"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "adguard/adguard-content.js",
        "content.bundle.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "match_about_blank": true,
      "run_at": "document_start"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/enabled/icon16.png",
      "48": "icons/enabled/icon48.png",
      "128": "icons/enabled/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "adguard/adguard-api.js",
      "worker.bundle.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d862c743-e0a5-4584-9079-1c03fd6b50a0}"
    }
  }
}