def METHOD_NAME(b5T, b6T, b8T, b9T):
    # red = band5 - band6; -25K to 5K rescalled to 0 to 255
    # grn = band8 - band9; -30K to 25K rescalled to 0 to 255
    # blu = band5 inverted; 190K to 243K rescalled to 0 to 255
    red = rescale(b5T-b6T, -25, 5, 0, 255)
    grn = rescale(b8T-b9T, -30, 25, 0, 255)
    blu = rescale(b5T, 243, 190, 0, 255)
    return combineRGB(red, grn, blu)