Examine source code of SVG Export

{
  "manifest_version": 3,
  "name": "SVG Export",
  "version": "3.0.3",
  "description": "Download SVGs from websites as SVGs, PNGs or JPEGs",
  "browser_specific_settings": {
    "gecko": {
      "id": "stephen@delanebob.com-svg-export"
    }
  },
  "icons": {
    "16": "icons/16x16.png",
    "19": "icons/19x19.png",
    "38": "icons/38x38.png",
    "48": "icons/48x48.png",
    "128": "icons/128x128.png"
  },
  "action": {
    "default_title": "Export SVGs"
  },
  "background": {
    "scripts": [
      "static/js/background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "activeTab",
    "scripting"
  ]
}