While you can make most of it bigger by making the drop down wider, it seems the buttons at the bottom don't scale.
I would imagine there's a way if you dug deeper into the component, for example, these two posts show how to change bits of components that normally you can't change with what appears to be Java?:
I'm not sure where to start with something like that though, is there documentation somewhere that shows what each component within the component is? Or are people just figuring this stuff out by trial and error with repeated .getComponent()'s, like what is shown in the second example?