Examine source code of ScrollWizard

{
  "manifest_version": 2,
  "name": "ScrollWizard",
  "version": "1.1.0",
  "description": "Smart scrolling made easy! Customize the scroll strip, use quick nav buttons & intuitive gestures. Instantly jump to top/bottom and easily navigate back and forth—your perfect navigation tool",
  "default_locale": "en",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "storage",
    "history",
    "<all_urls>"
  ],
  "browser_action": {
    "browser_style": true,
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "_locales/*/messages.json",
    "ReadMeRUS.html",
    "ReadMeENG.html",
    "ReadMeTR.html",
    "readme.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "scrollwizard.v1.0@example.com",
      "strict_min_version": "58.0"
    }
  }
}