Examine source code of GLaunch

{
  "name": "GLaunch",
  "version": "1.4.4",
  "manifest_version": 2,
  "short_name": "GLaunch",
  "author": "Oddineers",
  "description": "GLaunch is a simple tool which provides a popup panel linking to various Google services - Chrome Extension.",
  "icons": {
    "16": "cogton16.png",
    "48": "cogton48.png",
    "128": "cogton128.png"
  },
  "browser_action": {
    "default_icon": "cogton128.png",
    "default_title": "GLaunch - A Google Service Launcher",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "contextMenus"
  ],
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "windows": "Ctrl+Shift+Y",
        "mac": "Command+Shift+Y",
        "chromeos": "Ctrl+Shift+U",
        "linux": "Ctrl+Shift+J"
      },
      "description": "Toggle popup window"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "glaunch@oddineers.co.uk",
      "strict_min_version": "48.0"
    },
    "edge": {
      "browser_action_next_to_addressbar": true
    }
  }
}