Examine source code of Advanced Color Picker Pro

{
  "manifest_version": 2,
  "name": "Advanced Color Picker Pro",
  "version": "2.0.0",
  "description": "Professional color picker with eyedropper, harmony generator, contrast checker, palettes, and WCAG accessibility tools. Perfect for designers and developers.",
  "author": "Your Name",
  "permissions": [
    "activeTab",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Advanced Color Picker Pro",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "web_accessible_resources": [
    "icons/*.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "advanced-color-picker@example.com",
      "strict_min_version": "58.0"
    }
  }
}