Examine source code of Gerber

{
  "theme": {
    "images": {
      "theme_frame": "po55.jpg"
    },
    "colors": {
      "frame": "#d4c9c9",
      "tab_background_text": "#f53939"
    }
  },
  "version": "2.0",
  "name": "Gerber",
  "manifest_version": 2,
  "description": "Fantasma de la opera en forma mas moderna y dinamica"
}