Interface CandlestickDeltaCandle

One matched candle of the virtual delta layer: the shared x value, the reference line value at x, and the candle's four OHLC values. Signed deltas (fieldValue - reference) are derived per field inside the trace so the user can navigate open/high/low/close and have the delta recomputed.

interface CandlestickDeltaCandle {
    x: string;
    reference: number;
    open: number;
    high: number;
    low: number;
    close: number;
}