Examine source code of Water Reminder (Dark)

{
  "manifest_version": 2,
  "name": "Water Reminder",
  "version": "1.0",
  "description": "Water Reminder is a Chrome extension designed to help you maintain adequate water intake habits throughout the day.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/water-logo.png"
    }
  },
  "icons": {
    "128": "images/water-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d2d7044-3a0e-48e1-8b72-bb5a135bea8c}"
    }
  }
}