Examine source code of PageDash Web Clipper

{
  "manifest_version": 2,
  "name": "PageDash Web Clipper",
  "short_name": "PageDash",
  "description": "PageDash is your digital web scrapbook. Save web pages with just one click!",
  "version": "1.5.14.0",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "images/icon16.png",
    "24": "images/icon24.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon16.png",
      "24": "images/icon24.png",
      "32": "images/icon32.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    },
    "default_title": "Archive this page to PageDash"
  },
  "content_scripts": [
    {
      "js": [
        "intermediary.js"
      ],
      "exclude_matches": [
        "*://www.pagedash.com/*"
      ],
      "matches": [
        "*://*.pagedash.com/*",
        "*://app.pagedash.local/*"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "contextMenus",
    "<all_urls>"
  ],
  "web_accessible_resources": [
    "context.css",
    "popup.html"
  ],
  "__meta": {
    "permissions.all_urls": "<all_urls> is required for screen capture in Firefox, not Chrome."
  }
}