controlp5/examples/extra/ControlP5propertiesSets/default.json

{
  "/slider3": {
    "min": 0,
    "max": 255,
    "value": 0
  },
  "/slider2": {
    "min": 0,
    "max": 255,
    "value": 0
  },
  "/slider4": {
    "min": 0,
    "max": 255,
    "value": 0
  }
}