Examine source code of My Agent Extension by RepArchive

{
  "manifest_version": 2,
  "name": "My Agent Extension by RepArchive",
  "version": "1.15.2",
  "description": "Automatically convert all links on reddit and yupoo to your favorite shopping agent; enrich pages with price info and QC pics.",
  "icons": {
    "48": "public/icon.png"
  },
  "background": {
    "scripts": [
      "./js/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "public/icon.png",
    "default_popup": "./js/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.reddit.com/*",
        "*://*.x.yupoo.com/*"
      ],
      "js": [
        "./js/content_script.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.wegobuy.com/*",
        "*://*.superbuy.com/*",
        "*://*.sugargoo.com/*",
        "*://*.cssbuy.com/*",
        "*://*.pandabuy.com/*",
        "*://*.hagobuy.com/*",
        "*://*.kameymall.com/*",
        "*://*.ezbuycn.com/*",
        "*://*.cnfans.com/*",
        "*://*.taobao.com/*",
        "*://*.weidian.com/*",
        "*://*.1688.com/*",
        "*://*.tmall.com/*"
      ],
      "js": [
        "./js/toolbar.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "storage",
    "webNavigation",
    "*://*.reddit.com/*",
    "*://*.x.yupoo.com/*",
    "*://*.wegobuy.com/*",
    "*://*.superbuy.com/*",
    "*://*.sugargoo.com/*",
    "*://*.hagobuy.com/*",
    "*://*.cssbuy.com/*",
    "*://*.pandabuy.com/*",
    "*://*.kameymall.com/*",
    "*://*.ezbuycn.com/*",
    "*://*.cnfans.com/*",
    "https://*.reparchive.com/*",
    "https://api.qc.photos/*"
  ],
  "web_accessible_resources": [
    "public/agent_logos/*",
    "public/platform_logos/*"
  ],
  "applications": {
    "gecko": {
      "id": "reparchive-browser-extension@ch-webdev.com"
    }
  }
}