Thanks for your patience.
You could use OnMarketData() to get Time and Sales data and you could set up conditions to determine the colors of the Draw object.
My colleague Chelsea has a sample for NinjaTrader 7 linked below that you could view. The same concept could be applied to a script in NinjaTrader 8.
https://ninjatrader.com/support/foru...539#post753539
See this help guide page for more information about OnMarketData(): https://ninjatrader.com/support/help...marketdata.htm
Please let me know if I may assist further.
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