Examine source code of Rainbow Medley

{
  "theme": {
    "images": {
      "theme_frame": "rainbowmedleyH.jpg"
    },
    "colors": {
      "frame": "#c9decb",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Rainbow Medley",
  "manifest_version": 2,
  "description": "rainbow colors, gradient, blue, pink, yellow, green, stripes, tubes, spring, summer, pastel,"
}