Hi Sid,
Thanks for using Syncfusion products.
You can make use of the following samples to find the details about vector images in the Syncfusion.VectorImages.WPF assembly.
If you are in need to create new icons, We recommend you to make use of our Metro studio free product which has more than 7000 flat and wireframe icon templates that can be easily customized to create thousands of unique icons. You can download it from the following link,
Please let us know if this helps also need any further assistance on this.
Arulraj A