Examine source code of The Present Is Real

{
  "manifest_version": 2,
  "name": "The Present Is Real",
  "version": "1.0",
  "description": "A extension offering 100 Buddhist-inspired quotes about living in the present moment, with categorized navigation, a real-time clock,",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/present-logo.png"
    }
  },
  "icons": {
    "128": "images/present-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cd966b42-8b65-4ba9-86a3-3deb8ca20d17}"
    }
  }
}