scaleColor doesn't change

[paweljarosz83]

scaleColor property can't be set to any other color than yellow.

[MarioPerini]

not true:
https://codepen.io/MarioPerini/pen/yweEMZ

[HarryZHX]

@paweljarosz83 did you fix your problem? do you mind sharing with me? I tried on codepen it works but I tried on local js file it doesn't work.
thank you for your help.