Examine source code of Underground_TeKno

{
  "theme": {
    "images": {
      "theme_frame": "Underground.jpg"
    },
    "colors": {
      "frame": "#ababab",
      "tab_background_text": "#2fff00"
    }
  },
  "version": "2.0",
  "name": "Underground_TeKno",
  "manifest_version": 2,
  "description": "Underground Tekno Movment"
}