Examine source code of Volcano Dolphin

{
  "theme": {
    "images": {
      "theme_frame": "bottlenose-dolphin122.JPG"
    },
    "colors": {
      "frame": "#a15757",
      "tab_background_text": "#b4b3eb"
    }
  },
  "version": "2.0",
  "name": "Volcano Dolphin",
  "manifest_version": 2,
  "description": "This Volcano Dolphin looks evil, but i very friendly so he can watch what you do as you search on your computer!"
}