Examine source code of Red Winter Berries

{
  "theme": {
    "images": {
      "theme_frame": "2Persona_Header_red_winter_berries.jpg"
    },
    "colors": {
      "frame": "#850707",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Red Winter Berries",
  "manifest_version": 2,
  "description": "Winter Berries.\n\nThis is just a try-out. i may delete this soon ."
}