Examine source code of Scrollio

{
  "browser_specific_settings": {
    "gecko": {
      "id": "test1@eirn.com",
      "strict_min_version": "102.0"
    },
    "gecko_android": {
      "id": "test1@eirn.com",
      "strict_min_version": "113.0"
    }
  },
  "manifest_version": 2,
  "name": "Scrollio",
  "version": "1.3",
  "description": "Auto scrolls webpages at a reasonable pace",
  "icons": {
    "48": "icons/scroll-svg.svg"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/scroll-svg.svg"
    },
    "default_title": "Scrollio",
    "default_popup": "popup/settings.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scrol.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "popup/background.js"
    ]
  }
}