Examine source code of Adema Browser Widget

{
  "manifest_version": 3,
  "name": "Adema Browser Widget",
  "version": "0.2.7",
  "browser_specific_settings": {
    "gecko": {
      "id": "adema-browser-widget@adema.ai",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "description": "Capture listing data from property portals and create an Adema project in one click.",
  "action": {
    "default_title": "Adema Capture",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "activeTab",
    "identity",
    "scripting",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "https://*.rightmove.co.uk/*",
    "https://*.zoopla.co.uk/*",
    "https://*.onthemarket.com/*",
    "https://*.eigpropertyauctions.co.uk/*",
    "https://*.allsop.co.uk/*",
    "https://*.savills.co.uk/*",
    "https://*.sdlauctions.co.uk/*",
    "https://www.iamsold.co.uk/*",
    "https://www.btgeddisonspropertyauctions.com/*",
    "https://www.auctionhouse.co.uk/*",
    "https://*.loopnet.co.uk/*",
    "https://accounts.adema.ai/*",
    "https://stg-accounts.adema.ai/*",
    "https://auth.dev.adema.ai/*",
    "https://auth.stg.adema.ai/*",
    "https://auth.adema.ai/*",
    "https://*.eu.auth0.com/*",
    "https://app.adema.ai/*",
    "https://stg.adema.ai/*"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.rightmove.co.uk/*",
        "https://*.zoopla.co.uk/*",
        "https://*.onthemarket.com/*",
        "https://*.eigpropertyauctions.co.uk/*",
        "https://*.allsop.co.uk/*",
        "https://*.savills.co.uk/*",
        "https://*.sdlauctions.co.uk/*",
        "https://www.iamsold.co.uk/*",
        "https://www.btgeddisonspropertyauctions.com/*",
        "https://www.auctionhouse.co.uk/*",
        "https://*.loopnet.co.uk/*"
      ],
      "js": [
        "content/shared.js",
        "content/portals/rightmove.js",
        "content/portals/zoopla.js",
        "content/portals/onthemarket.js",
        "content/portals/allsop.js",
        "content/portals/eig.js",
        "content/portals/iamsold.js",
        "content/portals/btgeddisons.js",
        "content/portals/auctionhouse.js",
        "content/portals/savills.js",
        "content/portals/sdl.js",
        "content/portals/loopnet.js",
        "content/portals/generic.js",
        "content/content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}