Examine source code of Wisplight

{
  "name": "Wisplight",
  "description": "Your own personal intelligent web history search engine: Wisplight provides a clever full text search into your browser history.",
  "version": "1.0",
  "icons": {
    "16": "logo_16.fcd037b5.png",
    "48": "logo_48.6ff3690a.png",
    "128": "logo_128.eeda191a.png"
  },
  "manifest_version": 2,
  "background": {
    "persistent": false,
    "scripts": [
      "ext.7cd68b22.js"
    ]
  },
  "web_accessible_resources": [],
  "permissions": [
    "tabs"
  ],
  "omnibox": {
    "keyword": "w"
  },
  "chrome_url_overrides": {
    "newtab": "ext.17c9b29e.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{24200e07-d7b6-4105-839e-783de06ee5cf}"
    }
  }
}