Examine source code of Knockoutjs context

{
  "name": "Knockoutjs context debugger",
  "version": "2.6.3",
  "description": "Shows the knockout context & data for the selected dom node in a sidebar of the elements pane.",
  "icons": {
    "48": "icons/logo-48.png",
    "96": "icons/logo-96.png"
  },
  "devtools_page": "pages/devtools.html",
  "permissions": [
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "manifest_version": 2,
  "options_ui": {
    "page": "pages/options.html",
    "open_in_tab": true
  }
}