[
  {
    "name": "audio",
    "sub": [
      { "name": "music", "sub": ["background", "ambient"] },
      {
        "name": "sound effects",
        "sub": ["footsteps", "weapons"]
      },
      "voice"
    ]
  },
  {
    "name": "graphical",
    "sub": [
      {
        "name": "textures",
        "sub": ["highres textures", "lowres textures"]
      },
      "models",
      "shaders"
    ]
  },
  { "name": "user interface", "sub": ["hud", "menus", "icons"] },
  { "name": "gameplay", "sub": ["mechanics", "balance", "ai"] },
  "bugfixes"
]