Examine source code of Video Master

{
  "name": "Video Master",
  "version": "2.0",
  "description": "This video downloader is compatible with Downloading Youtube, Facebook, Vimeo and Pornhub Videos!",
  "manifest_version": 2,
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js",
      "axios.min.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "detected.png",
      "32": "detected.png",
      "48": "detected.png",
      "128": "detected.png"
    }
  },
  "icons": {
    "16": "detected.png",
    "32": "detected.png",
    "48": "detected.png",
    "128": "detected.png"
  }
}