Examine source code of Miku 923

{
  "theme": {
    "images": {
      "theme_frame": "sdasdnt-1.jpg"
    },
    "colors": {
      "frame": "#615f5f",
      "tab_background_text": "#878a8a"
    }
  },
  "version": "2.0",
  "name": "Miku 923",
  "manifest_version": 2,
  "description": "Miku Hatsune Vocaloid Rikku923 Themilfeuelle"
}