Examine source code of Void - to the Moon

{
  "theme": {
    "images": {
      "theme_frame": "FF_persona_shadows_1.png"
    },
    "colors": {
      "frame": "#4a6ba1",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Void - to the Moon",
  "manifest_version": 2,
  "description": "Persona based on my The Void landscape \"to the Moon\". yay!"
}