Examine source code of ruby silver crystal

{
  "theme": {
    "images": {
      "theme_frame": "ruby_silver_crystal.jpg"
    },
    "colors": {
      "frame": "#911d1d",
      "tab_background_text": "#050505"
    }
  },
  "version": "2.0",
  "name": "ruby silver crystal",
  "manifest_version": 2,
  "description": "ruby and silver inside crystal"
}