Examine source code of Read Later with Reminders

{
  "manifest_version": 2,
  "name": "Read Later with Reminders",
  "version": "1.0",
  "description": "Save articles and remind to read them later.",
  "permissions": [
    "storage",
    "notifications",
    "activeTab",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Read Later with Reminders"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8226e476-4eaf-4666-9df7-3a376cace97e}"
    }
  }
}