In the Key-in window, key in ACTIVE COLOR <color_name | color_number> or CO=<color_name | color_number>.

You can also set the active color as RGB colors using key-in. The syntax for it is ACTIVE COLOR RGB:<red,green,blue color numbers> or CO=RGB:<red,green,blue color numbers>. For example, ACTIVE COLOR RGB:100,150,200.

You also can use colors from a color book. For example, ACTIVE COLOR RAL CLASSIC 840-HR:1006.