You can use the set for all of your projects for free and without any restrictions. You can freely use it for both your private and commercial projects, including software, online services, templates and themes. However, the set may not be resold, sublicensed, rented, transferred or otherwise made available for use.
In case you like the set, we would be grateful if you consider linking to the Centigrade homepage (http://www.centigrade.de) somewhere on your website or your application?s About dialog.