change page button colors

I need to use a white font and it’s causing a problem on my “page 1 of…” button at the bottom of a post. You can’t read “page of…” on the white button’s white background. I’ve changed the button colors in “Design setup” and it didn’t alter this button with the rest.

PS – I’m using responsive auction theme but it’s not showing as a choice on the dropdown list for posting in the appropriate forum.