太虚一毫 wrote: Fri May 09, 2025 5:01 am It is planned to create a channel based on the Step VHF adaptive VMA indicator, using the highest price, lowest price, and even ATR. There has been a problem. The upper channel for the highest price displays normally; the lowest price channel (lower bound line) does not change colour, and the modified colour clrDarkSlateGray has also turned into a single line. Where exactly is the error in the code?