{
  "name": "Bollinger Bands",
  "description": "Bollinger Bands volatility indicator",
  "type": "bollinger_bands",
  "display_type": "overlay",
  "timeframe": null,
  "default_parameters": {
    "period": 20,
    "std_dev": 2.0
  },
  "parameter_schema": {
    "period": {
      "type": "int",
      "min": 5,
      "max": 100,
      "default": 20,
      "description": "Period for middle line (SMA)"
    },
    "std_dev": {
      "type": "float",
      "min": 0.5,
      "max": 5.0,
      "default": 2.0,
      "description": "Standard deviation for Bollinger Bands"
    },
    "timeframe": {
      "type": "string",
      "default": null,
      "description": "Indicator timeframe (e.g., '1h', '4h'). Null for chart timeframe."
    }
  },
  "default_styling": {
    "color": "#6f42c1",
    "line_width": 1
  }
}