Examine source code of The Zeeguu Reader

{
  "name": "The Zeeguu Reader",
  "description": "The extension helps you read articles in the language that you want to practice and offers one-click translation and pronunciation.",
  "version": "2.5.15",
  "browser_specific_settings": {
    "gecko": {
      "id": "{f2222964-e685-4342-a484-9c4820f317fc}"
    }
  },
  "manifest_version": 2,
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "cookies",
    "scripting",
    "https://zeeguu.org/",
    "https://www.zeeguu.org/",
    "https://api.zeeguu.org/",
    "<all_urls>",
    "contextMenus"
  ],
  "browser_action": {
    "default_icon": {
      "16": "/images/zeeguu16.png",
      "32": "/images/zeeguu32.png",
      "48": "/images/zeeguu48.png",
      "128": "/images/zeeguu128.png"
    },
    "default_title": "Open the popup",
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.zeeguu.org/*"
      ],
      "js": [
        "injectOnZeeguuOrg.js"
      ]
    }
  ],
  "icons": {
    "16": "/images/zeeguu16.png",
    "32": "/images/zeeguu32.png",
    "48": "/images/zeeguu48.png",
    "128": "/images/zeeguu128.png"
  },
  "web_accessible_resources": [
    "images/translate.svg",
    "images/sound.svg",
    "images/zeeguuLogo.svg",
    "images/zeeguuWhiteLogo.svg",
    "https://zeeguu.org/static/icons/zeeguu-icon-correct.png",
    "https://zeeguu.org/static/images/trash.svg",
    "https://zeeguu.org//static/images/yellow_star",
    "https://zeeguu.org/static/images/file_rename_orange_36dp.svg",
    "https://zeeguu.org/static/images/volume_up.svg",
    "https://zeeguu.org/static/images/thumb_down_black_18dp.svg"
  ]
}