Examine source code of Sonic Splash

{
  "theme": {
    "images": {
      "theme_frame": "Sonic_Splash.jpg"
    },
    "colors": {
      "frame": "#666666",
      "tab_background_text": "#6ab09e"
    }
  },
  "version": "2.0",
  "name": "Sonic Splash",
  "manifest_version": 2,
  "description": "A calm abstract persona, that combines smooth imagery, with style, and order."
}