Examine source code of F a b i o

{
  "theme": {
    "images": {
      "theme_frame": "Persona.jpg"
    },
    "colors": {
      "frame": "#25d9d9",
      "tab_background_text": "#3ad664"
    }
  },
  "version": "2.0",
  "name": "F a b i o",
  "manifest_version": 2,
  "description": "Da steht Fabio und Motiviert oder so :)"
}