code: def color_from_value(self, value):
      """given a value between 0 and 1, return an (r,g,b) tuple"""
      return ImageColor.getrgb(
          "hsl(%d,%d%%,%d%%)" % (int((1.0 - value) * 360), 80, 50)
      )
  
file_path: TimeSide/timeside/plugins/grapher/utils.py
imports: import numpy
label_desc: Use image node_id 7 for calling a global function with example usage: color_from_value(value) and returns: ImageColor