Examine source code of Image to vector converter

{
  "background": {
    "persistent": false,
    "scripts": [
      "bg.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon128.png"
  },
  "description": "Convert image to Vector",
  "icons": {
    "16": "icon16.png",
    "128": "icon128.png"
  },
  "manifest_version": 2,
  "name": "Image to SVG converter",
  "permissions": [
    "<all_urls>",
    "contextMenus",
    "clipboardWrite",
    "storage"
  ],
  "version": "0.2resigned1",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "pngtosvg@gmail.com",
      "strict_min_version": "42.0"
    },
    "edge": {
      "browser_action_next_to_addressbar": true
    }
  }
}