Examine source code of illusion_tm

{
  "theme": {
    "images": {
      "theme_frame": "illusionheader.jpg"
    },
    "colors": {
      "frame": "#e8a909",
      "tab_background_text": "#f55403"
    }
  },
  "version": "2.0",
  "name": "illusion_tm",
  "manifest_version": 2,
  "description": "Illusion trade mark!"
}