Examine source code of Z3US

{
  "manifest_version": 3,
  "version": "1.0.48.0",
  "version_name": "1.0.48",
  "author": "https://z3us.com",
  "name": "Z3US",
  "short_name": "Z3US",
  "description": "An open source community centered browser wallet for the Radix DLT network.",
  "action": {
    "default_popup": "popup-theme-system.html",
    "default_title": "Z3US",
    "default_icon": {
      "16": "favicon-16x16.png",
      "48": "favicon-48x48.png",
      "128": "favicon-128x128.png"
    }
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+Z",
        "windows": "Alt+Shift+Z",
        "mac": "Alt+Shift+Z",
        "chromeos": "Alt+Shift+Z",
        "linux": "Alt+Shift+Z"
      }
    }
  },
  "icons": {
    "16": "favicon-16x16.png",
    "48": "favicon-48x48.png",
    "128": "favicon-128x128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "notifications",
    "activeTab",
    "scripting"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "webextension@z3us.com",
      "strict_min_version": "42.0"
    }
  },
  "host_permissions": [
    "*://*.radixdlt.com/*",
    "*://api.bitfinex.com/*",
    "*://api.coingecko.com/api/*",
    "*://www.radixscan.io/*",
    "*://api.ociswap.com/v1/graphql/*",
    "*://dogecubex.live/api/*",
    "*://api.astrolescent.com/z3us/*",
    "*://pjhht6w8p9.execute-api.eu-west-2.amazonaws.com/prod/*",
    "*://api.dsor.io/*",
    "https://*/*"
  ],
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "js": [
        "assets/content-script-loader.content-script.ts.c2765bd2.js"
      ],
      "matches": [
        "*://*.z3us.com/*",
        "*://*.ociswap.com/*",
        "*://*.dsor.io/*",
        "*://*.caviarswap.io/*",
        "*://*.radit.io/*",
        "*://*.radixplanet.com/*",
        "*://*.vikingland.net/*",
        "*://*.vikingland.io/*",
        "*://*.astrolescent.com/*",
        "*://*.dogecubex.live/*",
        "*://*.defiplaza.net/*",
        "*://*.dogescrow.app/*",
        "*://*.radicaldinosaurs.com/*",
        "*://*.radish.world/*",
        "*://*.xidar.io/*",
        "*://*.dexian.io/*",
        "*://*.radishsquare.com/*",
        "*://*.hermesprotocol.io/*",
        "*://*.m-o.group/*",
        "*://*.momentum-one.io/*",
        "*://*.radishsquare.com/*",
        "*://*.thegnomesociety.com/*",
        "*://*.radixcharts.com/*",
        "*://*.radixscan.io/*"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://*/*"
      ],
      "resources": [
        "popup-theme-dark.html",
        "popup-theme-light.html",
        "popup-theme-system.html",
        "assets/*"
      ]
    },
    {
      "matches": [
        "*://*.astrolescent.com/*",
        "*://*.caviarswap.io/*",
        "*://*.defiplaza.net/*",
        "*://*.dexian.io/*",
        "*://*.dogecubex.live/*",
        "*://*.dogescrow.app/*",
        "*://*.dsor.io/*",
        "*://*.hermesprotocol.io/*",
        "*://*.m-o.group/*",
        "*://*.momentum-one.io/*",
        "*://*.ociswap.com/*",
        "*://*.radicaldinosaurs.com/*",
        "*://*.radish.world/*",
        "*://*.radishsquare.com/*",
        "*://*.radishsquare.com/*",
        "*://*.radit.io/*",
        "*://*.radixcharts.com/*",
        "*://*.radixplanet.com/*",
        "*://*.radixscan.io/*",
        "*://*.thegnomesociety.com/*",
        "*://*.vikingland.io/*",
        "*://*.vikingland.net/*",
        "*://*.xidar.io/*",
        "*://*.z3us.com/*"
      ],
      "resources": [
        "assets/browser-polyfill.js",
        "assets/messanger.js",
        "assets/inpage.js",
        "assets/events.js",
        "assets/content-script.ts.js"
      ]
    }
  ]
}