How to reuse icons (xaml-paths) in a large project?

Question

I am part of the development of a larger-scale Silverlight 4 project, where we will have a set of symbols that should be used across different parts of the GUI (see the exam

Answer 1

And then use style with contentcontrol type (or derivates):

All styles can be inside some resource dictionary: This is quite informative article: http://blogs.infosupport.com/tips-for-effective-usage-of-resource-dictionaries-in-silverlight-and-wpf/