Examine source code of Another Carnival

{
  "theme": {
    "images": {
      "theme_frame": "SR-AnotherCARNIVAL.jpg"
    },
    "colors": {
      "frame": "#d44508",
      "tab_background_text": "#e1f766"
    }
  },
  "version": "2.0",
  "name": "Another Carnival",
  "manifest_version": 2,
  "description": "A better version of 'It's Carnival I': this time I made the colored lights brighter, the lens blobs a little smaller and more in focus..."
}