When making Labels or printing text on a window or pop-up, BaCon can use the Pango Text Markup Language. More can be read about it here.
Here is a bit of code to see how it is used:
My_label1 = MARK( "<span color=\"blue\">Put your text here, it will be blue</span> ", 180, 30 )
My_label2 = MARK( "<b>This text is bold</b> , and this text is not.", 180, 30 )
My_label1 = MARK( "<span color=\"blue\">Put your text here, it will be blue</span> ", 180, 30 )
My_label2 = MARK( "<b>This text is bold</b> , and this text is not.", 180, 30 )
So have fun with your text!