Examine source code of Luka Madness

{
  "theme": {
    "images": {
      "theme_frame": "headerpersona.jpg"
    },
    "colors": {
      "frame": "#f5b5ff",
      "tab_background_text": "#5a2c96"
    }
  },
  "version": "2.0",
  "name": "Luka Madness",
  "manifest_version": 2,
  "description": "Luka Megurine, from Vocaloid :)"
}