Examine source code of Easy ECAD Downloader

{
  "manifest_version": 3,
  "name": "Easy ECAD Downloader",
  "version": "1.0.0",
  "description": "Export KiCad symbol, footprint, and 3D model files from EasyEDA and supported SamacSys distributor product pages.",
  "permissions": [
    "activeTab",
    "cookies",
    "downloads",
    "storage"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*",
    "https://easyeda.com/*",
    "https://modules.easyeda.com/*",
    "https://*.componentsearchengine.com/*"
  ],
  "background": {
    "service_worker": "src/service_worker.js",
    "scripts": [
      "src/service_worker.js"
    ],
    "preferred_environment": [
      "document",
      "service_worker"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Export supported part",
    "default_popup": "src/popup.html",
    "default_icon": {
      "16": "icons/16x16.png",
      "32": "icons/32x32.png",
      "48": "icons/48x48.png",
      "128": "icons/128x128.png"
    }
  },
  "options_ui": {
    "page": "src/settings.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/16x16.png",
    "32": "icons/32x32.png",
    "48": "icons/48x48.png",
    "128": "icons/128x128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.jlcpcb.com/*",
        "*://*.lcsc.com/*",
        "*://*.mouser.com/*",
        "*://*.mouser.co.uk/*",
        "*://uk.farnell.com/*",
        "*://*.farnell.com/*",
        "*://*.element14.com/*",
        "*://*.newark.com/*"
      ],
      "js": [
        "src/content_script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "easyeda-downloader@joeshade.local",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}