Examine source code of LattifEducation

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "artic_fox",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{d3912e6a-a0cc-4509-853b-3b85551d1571}"
    }
  }
}