# kip to end of metadata

In the preamble add the line
 \usecolortheme[named=xxx]{structure}
where xxx is one of the following
• red
• green
• blue
• cyan
• magenta
• yellow
• black
• darkgray
• gray
• lightgray
• orange
• violet
• purple
• brown
Alternatively you can define your own colour scheme using the following code before the above line
 \definecolor{colourname}{rgb}{.125,.5,.25}
where 0.125 is the intensity of red, 0.5 is the intensity of green and 0.25 is the intensity of blue. Then replace xxx with colourname in the \usecolortheme command