Examine source code of Web Content Analyzer

{
  "manifest_version": 2,
  "name": "Web Content Analyzer",
  "version": "1.0",
  "description": "Analyze web page content: count words, images, videos, links and estimate reading time.",
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Analyze this page"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dce19922-771f-428f-8e89-a15c74494395}"
    }
  }
}