Examine source code of WriteAhead (dev)

{
  "manifest_version": 2,
  "name": "WriteAhead (dev) (dev)",
  "version": "1.1.108",
  "description": "Empowering Teachers with Intelligent, Personalized Feedback to Improve Student Writing.",
  "applications": {
    "gecko": {
      "id": "{6e40871a-0891-4c68-a566-a1e252dc882c}"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "identity",
    "contextMenus",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "css/content.css"
      ],
      "js": [
        "js/contentscriptstart.js"
      ],
      "all_frames": false
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon.wa.16.png",
      "24": "images/icon.wa.24.png",
      "32": "images/icon.wa.32.png",
      "48": "images/icon.wa.48.png"
    }
  },
  "sidebar_action": {
    "default_title": "WriteAhead",
    "default_panel": "sidepanel.html",
    "default_icon": {
      "16": "images/icon.wa.16.png",
      "24": "images/icon.wa.24.png",
      "32": "images/icon.wa.32.png",
      "48": "images/icon.wa.48.png"
    },
    "open_at_install": false
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "images/icon.wa.16.png",
    "24": "images/icon.wa.24.png",
    "32": "images/icon.wa.32.png",
    "48": "images/icon.wa.48.png"
  }
}