Examine source code of The Lemonheads

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_.jpg"
    },
    "colors": {
      "frame": "#f7f305",
      "tab_background_text": "#bac"
    }
  },
  "version": "2.0",
  "name": "The Lemonheads",
  "manifest_version": 2,
  "description": "Lemonheads Persona"
}