Examine source code of VV Tab

{
  "manifest_version": 2,
  "name": "VV Tab",
  "version": "1.0",
  "description": "Visualize Value On Every Tab ",
  "short_name": "VV Tab",
  "permissions": [
    "Storage"
  ],
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "Assets/vv.jpg",
    "default_title": "Colord",
    "default_popup": "index.html"
  },
  "icons": {
    "128": "Assets/vv.jpg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3f5df6ec-fdca-4e99-9a72-87d4621bb0e4}"
    }
  }
}