Examine source code of Die Erde

{
  "theme": {
    "images": {
      "theme_frame": "headerKopie.png"
    },
    "colors": {
      "frame": "#473f3f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Die Erde",
  "manifest_version": 2,
  "description": "Ein Persona über die Erde.\nA persona about the earth."
}