How to set comboBox borderThickness
I can set most of the parameters of a comboBox, cb, by setting the attribute directly on the object, such as:
cb.rowHeight = 30;
cb.alpha = 100;
for row height and alpha respectively. But for other attributes such as bordercolor and thickness, it seems to use a setStyle function. So it compiles with:
cb.setStyle("borderColor", 0x75aa75);
cb.setStyle("borderThickness", 10);
but it doesn't seem to cause any change. Does it need some other method?

