How to set faces with different color for step file

Hi Bros, as the title, I try to set color for different faces of step file. And then I would like view it. However, I didn't find the tool to set color in OCCT.
Hope for you help! Bless you!

Kirill Gavrilov's picture

This is either question for Data Exchange (would you like to save these colors into STEP / other format) or Visualization (would you like to show colors in 3D viewer only), but not for Modeling algorithms.