The Heikin Ashi indicator displays Heikin Ashi candlesticks on trading charts. It can be applied by dragging the indicator onto the desired chart. Users can customize the appearance by right-clicking the chart, selecting "Color options," and setting the Bull Outline, Bull Fill, Bear Outline, and Bear Fill colors to transparent. This indicator supports markets including Forex, Crypto, and Stocks, providing an alternative candlestick visualization to assist in market analysis and signal identification.