Shoutbox

I've succeed to changed the font color but not to change the text color.
Do you knox how to done ?
More, I don't see the differency between color1 and color2 in the code :
    <MessengerPlus>
            <TabbedChatBar>
                    <Color1><Position X="3" Y="800"/></Color1>
            <Color2><Position X="3" Y="800"/></Color2>
            </TabbedChatBar>
        </MessengerPlus>

Thanks you