code: def _convert_color_format(col, alpha):
      return [int(c * 255) for c in col[:3]] + [alpha]
  
file_path: geoplotlib/geoplotlib/colors.py
imports: from random import shuffle
  import math
label_desc: Use image node_id 1 for calling a global function with example usage: _convert_color_format(col, alpha) and returns: unknown