Examine source code of Cross From Heaven

{
  "theme": {
    "images": {
      "theme_frame": "crossfromheaven_header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#0091ff"
    }
  },
  "version": "2.0",
  "name": "Cross From Heaven",
  "manifest_version": 2,
  "description": "beautiful bright cross"
}