Examine source code of CSV Viewer

{
  "manifest_version": 3,
  "name": "CSV Viewer",
  "description": "A CSV Viewer that just works. No more downloading and opening in Excel.",
  "version": "1.1.1",
  "author": "Light",
  "homepage_url": "https://github.com/maheshbansod/csv-view-ext",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "/index.html",
        "/assets/*.js",
        "/assets/*.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "css-view-ext@lightextensions"
    }
  }
}