How do I change background color on This Field is required message?

I would like the background on "This Field is required" message to be red instead of orange.  How do I change the color?  See attached image.

This is possible to change the background color of the required validation box via Form Designer.

Please see the next animation.

If you need any further assistance, please let us know.

Thank you so much! That solved the issue!

Kathy