Examine source code of F15 Pass

{
  "theme": {
    "images": {
      "theme_frame": "F15Persona.jpg"
    },
    "colors": {
      "frame": "#1111db",
      "tab_background_text": "#595656"
    }
  },
  "version": "2.0",
  "name": "F15 Pass",
  "manifest_version": 2
}