Integrate better with Web Look and Feel

[nomel7]

We've changed the L&F to Web Look and Feel. This seems to have affected some of our Swing components in the wrong way. For example, certain button which were transparent now appear as regular buttons again. We can either change the misbehaving components to somehow work better with the L&F else we can use one of the L&F's in extra components. The first option may be preferable as it will make it easier to change the L&F again in future.