Drawer Dividers - Parametric Design

I'm new to OpenSCAD and I came across the divider model.

I needed it in different sizes for my kitchen drawers and a small box I have, so made it parametric :)

Fillets in OpenSCAD are kinda hard, the way I found to add them results in in-accurate (0.01m error) measurments. So I included the option to give up on them (setting fillet to 0mm).