background Color

Firstly an very cool plugin, thank you.

But I have a problem with my styles and hope someone can help me.
This web site http://www.famousfishing.com/fisheries style mainly is black background with white text which fits with our other .co.uk site.

After clicking on a pin marker then “To here” the first drop down box is fine, I then enter a starting point and click on “Get Directions” The Suggested route box that then opens appears blank but does contain white test, I either need to be able to change the text to black or the background to black and as yet cannot see a way of doing this. Is it possible and if so how do I achieve this?
Thanks in advance
Bill

http://ww.wp.xz.cn/extend/plugins/comprehensive-google-map-plugin/