Examine source code of Hight Voltage

{
  "theme": {
    "images": {
      "theme_frame": "1Kopie.jpg"
    },
    "colors": {
      "frame": "#8387b5",
      "tab_background_text": "#f7f4f4"
    }
  },
  "version": "2.0",
  "name": "Hight Voltage",
  "manifest_version": 2,
  "description": "The sparks were photographed by me.\nThey were generated by a coil."
}