Examine source code of ChoChoo Circles1

{
  "theme": {
    "images": {
      "theme_frame": "chochoo.jpg"
    },
    "colors": {
      "frame": "#ff6600",
      "tab_background_text": "#011f0a"
    }
  },
  "version": "2.0",
  "name": "ChoChoo Circles1",
  "manifest_version": 2,
  "description": "ChoChoo Circles1, coming soon ChoChoo Circles 2 animation"
}