Examine source code of Piano Man

{
  "theme": {
    "images": {
      "theme_frame": "willbillffh.jpg"
    },
    "colors": {
      "frame": "#f5c27a",
      "tab_background_text": "#f9f9fc"
    }
  },
  "version": "2.0",
  "name": "Piano Man",
  "manifest_version": 2,
  "description": "Musical inspiration of a piano man."
}