Examine source code of Peacock Eye

{
  "theme": {
    "images": {
      "theme_frame": "PeacockEyeHeader.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ccbf4b"
    }
  },
  "version": "2.0",
  "name": "Peacock Eye",
  "manifest_version": 2,
  "description": "Peacock Eye is part of an art challenge and was painted from scratch using TwistedBrush."
}