Examine source code of Flying Rainbow Dolphin

{
  "theme": {
    "images": {
      "theme_frame": "rainbowheader.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#33ccff"
    }
  },
  "version": "2.0",
  "name": "Flying Rainbow Dolphin",
  "manifest_version": 2,
  "description": "I must be dreaming."
}