Heikin-Ashi as a first-class series: transformView builds the synthetic
HA view (the seam previously hidden inside HeikinAshiRenderer), and draw
delegates to the candle renderer. Because the transformed view now flows
through autoscale, the price axis fits the HA candles — fixing the prior
behavior where it scaled to the raw OHLC instead.
Heikin-Ashi as a first-class series:
transformViewbuilds the synthetic HA view (the seam previously hidden inside HeikinAshiRenderer), anddrawdelegates to the candle renderer. Because the transformed view now flows through autoscale, the price axis fits the HA candles — fixing the prior behavior where it scaled to the raw OHLC instead.