Examine source code of Scroll Web Reader

{
  "manifest_version": 2,
  "name": "Scroll Reader Slowly",
  "version": "3.0",
  "description": "Scroll slowly to read paragraphs, adjust speed",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "styles.css"
  ],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a82ee489-1b09-4d1f-9229-054fbc50edec}"
    }
  }
}