Examine source code of Winged Cross

{
  "theme": {
    "images": {
      "theme_frame": "WingedCrossH.jpg"
    },
    "colors": {
      "frame": "#0f0e0e",
      "tab_background_text": "#141212"
    }
  },
  "version": "2.0",
  "name": "Winged Cross",
  "manifest_version": 2,
  "description": "Simple white background.\n\nAngel wings, cross"
}