Examine source code of Extensify Todo Extension

{
  "manifest_version": 2,
  "name": "Extensify Be",
  "author": "shriyash",
  "version": "1.0",
  "description": "A Cool Browser Extension that let's you manage your daily task with soothing background and inspiring quotes",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{51ca975b-90db-4296-b952-7638f2629aac}"
    }
  }
}