How to change attributes of X & Y axes?

How can I change the attributes (visibility, color, line thickness) of X & Y axes?

Thanks,
Don C.

What do mean by this?
you can change the grid colour in Options - Application Preferences.

Yes, I can see that. My grid is dotted grey. But are there no separate attributes for the axes to distinguish them from the grid? Also, if I turn off the grid the only remaining indication is a small cross-hair at the origin.

There is no extra axis indicator. What for? x goes to the right and y upwards, respectively in the opposite direction if negative. Simple.
In a 3-D program with an adjustable view an axis indicator is useful, but there is no need in a 2-D CAD.