• Pure: whether a candle's body still shows once it is this narrow.

    Only returns wick when the body is provably invisible under the wick, so a chart drawn at either tier is pixel-identical. Anything that could make the body read differently - a hollow candle's outline, a border wide enough to survive, a body colour that differs from the wick's, a hidden wick with nothing to hide behind - stays full.

    bodyW is the per-bar width, so a volume candle whose widthScale has narrowed it is judged on what it will actually draw.

    Parameters

    Returns CandleTier