How do I change the normally white text background to yellow on a
DateTimePicker?

For a TextBox, I simply use this code:

TextBox1.BackColor = System.Drawing.Color.Yellow

.. but it doesn't change the appearance of a DateTimePicker control when I
do this:

DateTimePicker1.BackColor = System.Drawing.Color.Yellow

I tried setting every color property I could find with Intelisense,
including all of the calendar colors. No luck.

Any suggestions?

Dave