Shoutbox

uhm you do it the same way as you have set them but you have to select the "system default" guide: rightclick on the floating contact >>> change display settings >>>go text colour or background colour to select "system default" on both of them

so the setting should be Border Colour = Bleu
                                Text Colour     = System Default
                        Background Colour   = System Default

then you only have to rightklick on the floating contact >> change display settings >> set as default

then you have the settings you've had before changing the colours