DWG/DXF Drawing output colors

So kinda a weird thing here. So Ihad to start outputting some of my Solidworks drawings to DWG or DXF for someone, and when they open it, all the lines are dark and you cant really see anything. I verified it on my computer, that when i open the DWG in autocad, the lines are dark, and hard to see. Is there a setting somewhere to change the output colors, or is this something that would have to happen on the autocad side?

Maybe change the layer colors to something more visible on a black screen.

I did this years ago when I needed to have all of my assembly part drawings converted to AutoCad.

Use a mapping file -- see in help: Mapping Entities When Saving Drawings as .DXF or .DWG Files