Examine source code of Tigersharks

{
  "theme": {
    "images": {
      "theme_frame": "BrowserHeaderTigersharks.jpg"
    },
    "colors": {
      "frame": "#bfbdbd",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Tigersharks",
  "manifest_version": 2,
  "description": "I created a blue and green gradiant and the logo of Tigersharks cartoon logo from the 80s cartoon"
}