I'm trying to create a simple interface which fills a resizable window, but the obvious tool for the job, FillPane, doesn't seem to be working for me.
I'm creating a window from the following BXML:
<Window title="Window" xmlns="org.apache.pivot.wtk" xmlns:bxml="http://pivot.apache.org/bxml">
<FillPane orientation="VERTICAL">
<ScrollPane>
<ListView/>
</ScrollPane>
<PushButton buttonData="Button"/>
</FillPane>
</Window>
But the FillPane only covers a tiny portion of the Window:

I wouldn't have thought I could have made an error in something so simple, but clearly something isn't working as I expected.
I'm using Pivot 2.0.3 and Java 1.7 update 51 on Windows 7.
FillPane just makes sure that its children fill all of the space it occupies; it doesn't actually make sure the pane itself fills its parent.
Adding the maximized="true" attribute to your Window tag should give the result you're after.