Go to edit right table, you will notice color: then 6 numbers and or letters from 0 through to 9 and A to F Change these numbers to the hex code for the colour you want, e.g. Blue is 0000FF, if you click on HTML COlor on the left of this page you will find colour swatches and their Hex code.

NOTE: THis will change the Jump that Shows the TD's name but not the time. I have not figured out how to change the other colours on the main page, eg Admin Names, Top ten etc