Examine source code of frecce tricolore

{
  "theme": {
    "images": {
      "theme_frame": "freccealto1.jpg"
    },
    "colors": {
      "frame": "#0f0e0e",
      "tab_background_text": "#0d0c0c"
    }
  },
  "version": "2.0",
  "name": "frecce tricolore",
  "manifest_version": 2,
  "description": "frecce tricolore ita pattuglia acrobatica"
}