Examine source code of LingQ Highlight Import

{
  "manifest_version": 2,
  "name": "LingQ Highlight Import",
  "description": "Imports Highlighted text to a dedicated LingQ Lesson",
  "version": "1.13",
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "LingQHighlightImport.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "web_accessible_resources": [
    "icons/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "cookies",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "storage",
    "activeTab",
    "tabs",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3be4a9e7-0139-463c-802f-ec938cc32861}"
    }
  }
}