In order to make your Models appear more realistic you can now add Materials.
To edit this, select by tapping on the object you want to edit, and then press the colour pallet on the toolbar.
Tapping on the material option will open the material menu, where you can scroll through and select a material.
If you want to edit the colour of this material you can do so in the colour menu.
If you want this colour across all steps you will need to copy this attribute using the Replicate tool.
You can open the replicate tool by holding down the pallet symbol .
Pressing the infinity symbol will copy the colour across every Step of your Jig.