Kubrick theme – how does it work

Hi All

I am using the default theme based on Kubrick

It seems to have an awful load of image creation code, but i have no idea how to use it.

For instance i want to change the blue header box colour, i can do it by overwriting the existing kubrickheader.jpg file, but looking at the header-img.php there should be a way to automatically create this and change the background colour from white to another colour, but i can’t figure it out.

Any help would be appreciated