Examine source code of Winter Holiday Spread

{
  "theme": {
    "images": {
      "theme_frame": "header535.jpg"
    },
    "colors": {
      "frame": "#e3dcdc",
      "tab_background_text": "#9dfd99"
    }
  },
  "version": "2.0",
  "name": "Winter Holiday Spread",
  "manifest_version": 2,
  "description": "Christmas greens and bauble sprigs for the holidays."
}