Examine source code of Text Translator (English)

{
  "manifest_version": 2,
  "name": "Text Translator",
  "version": "1.0",
  "description": "Presents a right-click menu option to translate text to given language. English by default",
  "background": {
    "scripts": [
      "script.js",
      "axios.min.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "contextMenus"
  ],
  "icons": {
    "512": "icons/512.png"
  }
}