Examine source code of Devil May Cry Vergil

{
  "theme": {
    "images": {
      "theme_frame": "02.jpg"
    },
    "colors": {
      "frame": "#4f4e4e",
      "tab_background_text": "#c0c0c0"
    }
  },
  "version": "2.0",
  "name": "Devil May Cry Vergil",
  "manifest_version": 2
}