NumericalChameleon is the first application I know that comes bundled with Squareness Look And Feel. NumericalChameleon explicitly allows you to change the look and feel it uses. Here Squareness Look And Feel is one of the options to choose from.
That’s a great success for Squareness and a chance for its fame to grow.
NumericalChameleon is a unit converter, but unlike other unit converters that suffice themselves by converting a handful of units, NumericalChameleon can convert more than 3200 units.