Examine source code of AchiveViewer - Find archived emails in Gmail

Inspect and view changes in AchiveViewer - Find archived emails in Gmail source codes across current and past versions
Premium users can view and search full source code, and see the source code differences between two versions.
Upgrade to premium
manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_app_name__",
  "version": "1.0.6",
  "description": "__MSG_app_description__",
  "default_locale": "en",
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "images/logo.png",
      "48": "images/logo.png",
      "128": "images/logo.png"
    }
  },
  "background": {
    "service_worker": "background.js"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://mail.google.com/*"
      ],
      "resources": [
        "images/*"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*"
      ],
      "js": [
        "displayUI.js"
      ]
    }
  ],
  "icons": {
    "16": "images/logo.png",
    "48": "images/logo.png",
    "128": "images/logo.png"
  }
}