07-11-2016 01:13 PM
It's a bitmap applied to the contact screen. Remove the bitmap and then you can apply a color.
07-15-2016 07:23 AM
Have you tried Tools>>Define Layouts>>Contact when you are in the Contacts Detailed View?
Click on any field you wish to edit, select View>>Properties Window and edit the Appearance as you wish.
You can also follow the instructions from this KB Article:
Hope this helps!