If your heading settings in 'fancy', then you can put \usepackage{fancyhdr} in the pramble. You may define your header/footer using that package. There are some discussions here about 'fancyhdr'. I am not sure whether the control of color in fancyhdr will suit to what you need.
was 2009/3/25 Stefano Lampis <stefanolam...@gmail.com>: > Hello, > is it possible with lyx to customize the header and/or the footer of the > layout for PDF output, for instance with background color, text color, or > different margins? > > Thanks for help. > Regards. > > -- > Stefano Lampis >