Examine source code of Daily Mood Tracker

{
  "manifest_version": 2,
  "name": "Daily Mood Tracker",
  "version": "1.0",
  "description": "Track your mood and tab activity to find patterns in how you browse.",
  "permissions": [
    "storage",
    "tabs",
    "alarms"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5b87cb43-c27d-46a3-8a49-6356a56d9bd8}"
    }
  }
}