Examine source code of Market Square Jester

{
  "theme": {
    "images": {
      "theme_frame": "marketsquarejester2.png"
    },
    "colors": {
      "frame": "#414141",
      "tab_background_text": "#a89db8"
    }
  },
  "version": "2.0",
  "name": "Market Square Jester",
  "manifest_version": 2,
  "description": "Inspired by Marillion's 1st single: \"Market Square Heroes\"\nJester created by Mark Wilkinson"
}