Examine source code of Model Car Firebird

{
  "theme": {
    "images": {
      "theme_frame": "modelcar5.jpg"
    },
    "colors": {
      "frame": "#1c1919",
      "tab_background_text": "#3098d9"
    }
  },
  "version": "2.0",
  "name": "Model Car Firebird",
  "manifest_version": 2,
  "description": "1968 Pontiac Firebird"
}