Examine source code of Pastel Lights 4

{
  "theme": {
    "images": {
      "theme_frame": "PastelLights4.jpg"
    },
    "colors": {
      "frame": "#7091eb",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Pastel Lights 4",
  "manifest_version": 2,
  "description": "bright lights, bulb, holiday, Christmas, blue, purple, yellow, aqua, glow, light\n\nDesigned by MaDonna"
}