Precision: When set to "Vehicle", the price scale will use a similar decimal precision as that of the underlying symbol. Heikin-Ashi, meaning "ordinary bar" in Japanese, is a definite kind of Candlestick chart. They use ordinary ranges to estimate the points on the Candle, which smooths out the chart https://financefeeds.com/a-simple-introduction-to-trading-cryptocurrencies-on-metatrader-5/