If you are a Pro/ENGINEER user who finds the fact that the model's edges are not easily distinguished and causing features hard to find, then you may try this option to make the edges more prominent.
|A sample 3D model in the original settings (above), with the circled area zoomed in (below).|
Step 1: View ->> Display Settings ->> Model Display...
Step 2: click on the tab named Shade ->> check the checkbox With Edges ->> click OK
The result is clearly different from the original settings, and the features are clearly distinguished after the settings have been applied.
It is worthy to note though that the color and its highlight and shadows setting affects how visible the edges are. After applying this setting, individual color settings may still need to be tuned to get a more prominent edge.