Examine source code of Wheeeee

{
  "theme": {
    "images": {
      "theme_frame": "wheeeeetwo.png"
    },
    "colors": {
      "frame": "#4693d6",
      "tab_background_text": "#046473"
    }
  },
  "version": "2.0",
  "name": "Wheeeee",
  "manifest_version": 2,
  "description": "Surfing together on the internet rainbow :)\nresized"
}