Examine source code of Its Carnival I

{
  "theme": {
    "images": {
      "theme_frame": "SR-CARNIV1.jpg"
    },
    "colors": {
      "frame": "#851a02",
      "tab_background_text": "#dcf54c"
    }
  },
  "version": "2.0",
  "name": "Its Carnival I",
  "manifest_version": 2,
  "description": "The  nighttime drama of the lights of Brazil's lively Carnival, in muted color blobs against a black background..."
}