German GUI, Plastic Look and Feel, filter physics, category length
French GUI, Metal theme, filter travel, category calendar (date)
English GUI, Metouia-Look and Feel, filter favorites, category "spoken numbers"
Hebrew GUI, Squareness Look and Feel, no filter, category timezones
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The founder of this project is Johann N. Löfflmann from Germany. Since 2001 he has been working with talented people all around the world in order to improve the NumericalChameleon, and learning new areas of knowledge. The list of contributors can always be found in the latest download package and in the copyright section.