Examine source code of GianGiu

{
  "theme": {
    "images": {
      "theme_frame": "GianGiu_ffox_skin_up.png"
    },
    "colors": {
      "frame": "#c4b8a7",
      "tab_background_text": "#211f1c"
    }
  },
  "version": "2.0",
  "name": "GianGiu",
  "manifest_version": 2,
  "description": "GianGiu on grid"
}