Now you can highlight a part's edges by setting the edge color. You can change the properties for just one part, or change the settings so all new parts are created with a specific edge color.
Here we've set the edge color white on the central part. Use this option when you want part edges to be clearly visibile.
How to
To change the default edge color for all new parts, click Edit > Settings > Part.
To change the edge color for a specific part, right-click the part and select Properties.