Changing colour of Base Skin

[bezzy1970]

Hi all

For my sins i've decided to try and design my own tactics after downloading them since i started playing FM  so i decided to start a new game in Football Manager Touch to save myself the hassle of thinking of everything else like training and other things so my question is how do i go about changing the colour of the base skin from purple to a basic black and white to give my eyes a rest from colours.

Thank you for any advice given.