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Because the interface as shown till now is so boring (only text), we create some fancy widgets to display values in a more fashionable way.

As demonstration to how widgets can be extended [derived] or combined [mega] into new widgets, we will build a vumeter-like widget (like on your hifi-set showing the amount of noise it produces).

Atsar encap -2 Derived widget -1

Created by Mark Overmeer with PPresenter on 5 august 2001.