[
  {
    "name": "Spool 1",
    "initial": 1000,
    "used": 200,
    "color": "#25db00"
  },
  {
    "name": "Spool 4",
    "initial": 1000,
    "used": 100,
    "color": "#000000"
  },
  {
    "name": "Spool 2",
    "initial": 250,
    "used": 120,
    "color": "#ffffff"
  },
  {
    "name": "Spool 3",
    "initial": 250,
    "used": 30,
    "color": "#ff6600"
  }
]