Examine source code of fordmustang

{
  "theme": {
    "images": {
      "theme_frame": "mustang.jpg"
    },
    "colors": {
      "frame": "#f7f4f4",
      "tab_background_text": "#e4eff2"
    }
  },
  "version": "2.0",
  "name": "fordmustang",
  "manifest_version": 2,
  "description": "ford mustang"
}