Examine source code of High Security

{
  "theme": {
    "images": {
      "theme_frame": "hhs.png"
    },
    "colors": {
      "frame": "#cbe3f2",
      "tab_background_text": "#223ce3"
    }
  },
  "version": "2.0",
  "name": "High Security",
  "manifest_version": 2,
  "description": "High security"
}