Examine source code of city_ot

{
  "theme": {
    "images": {
      "theme_frame": "otago_header.jpg"
    },
    "colors": {
      "frame": "#d4d4d4",
      "tab_background_text": "#333333"
    }
  },
  "version": "2.0",
  "name": "city_ot",
  "manifest_version": 2,
  "description": "zabawa"
}