It's kinda cool when you think about it. From the example just try the following: Code: myMessage = 'Blue text' fontSize = 100 myMessageDialog.label.set_markup("<span foreground=\"blue\" size=\"%d\">%s</span> is <i>cool</i>!" % (fontSize,myMessage))
myMessage = 'Blue text' fontSize = 100 myMessageDialog.label.set_markup("<span foreground=\"blue\" size=\"%d\">%s</span> is <i>cool</i>!" % (fontSize,myMessage))