Examine source code of Faded_City_Lights

{
  "theme": {
    "images": {
      "theme_frame": "phone840_header.jpg"
    },
    "colors": {
      "frame": "#7d7878",
      "tab_background_text": "#de2c2c"
    }
  },
  "version": "2.0",
  "name": "Faded_City_Lights",
  "manifest_version": 2,
  "description": "*City lights on a faded background*"
}