Examine source code of BMW e28

{
  "theme": {
    "images": {
      "theme_frame": "BMWe28render.jpg"
    },
    "colors": {
      "frame": "#bfb8b8",
      "tab_background_text": "#f7f2f2"
    }
  },
  "version": "2.0",
  "name": "BMW e28",
  "manifest_version": 2,
  "description": "This is a Persona of three unique vintage BMWs. They are all three different makes of the same model of the BMW e28 5-series. These cars were produced in Germany in the 1980's."
}