Issue:

How to adjust the size and color of the cross cursor?

Solution:

In the Options dialog box, you can set the size and color of the cross cursor.

And the cross cursor size is controlled by the system variable CURSORSIZE.

By default, the cursor will automatically become colorized when the view is oriented to the 3D view, and become white when the view changes to the orthogonal view such as the front view, top view.