A few days ago, Oliver Steele contributed a roundrect class to OpenLaszlo. Until then, without a designer and art assets, we had to prototype with plain old rectangular views. The roundrect class inspired a button based on it, roundrectbutton, which I've just checked in to the dev branch, in the incubator. I was trying to make it a well-behavd basecomponent subclass, so I made it handle _applyStyle, so now it's tintable. This makes me happy in a silly sunday morning wannabe designer kind of way.
In the example below, the roundrect buttons are mine; the other widgets are built-in OpenLaszlo components.
[EDIT: Sorry, this post was not valid XHTML. Now it is, thanks to
chrispederick's webdeveloper firefox extension