Hi Danny, also I've got the options working now for being able to change how edges are displayed.

There will be a new setting for this under Options / View :



There are 2 choices under the drop-downs there: "By style", and "Fixed color".

The default is "By style" which means that edges and surfaces will display in their style color.

If you set it to the "Fixed color" option, then a swatch will appear which you can adjust:



When the "Fixed color" option is set, all edges or surfaces will use this specified color rather than being drawn in their style color.

So that will enable you to get edges displayed in black always if you want.

- Michael