LaTeX renderer for .NET?

This is very overdue, but I thought I'd post a link to a revived and expanded port of the WPF-Math project, which I started not too long after this original question, and still help maintain in a minor capacity. It was originally a port of JMathTex, but has since expanded to include a lot more. At the moment, it's in the process of gaining renderers other than WPF.

A pure C# implementation of Latex by verybadcat.

This is a C# port of the wonderful iosMath LaTeX engine.

It is now working in most cases. Some examples are below. Ironically enough, the first front end is iOS. However, if you want to add a front end, such as Xamarin.Forms or a Windows environment, it should be possible. You would have to define your own TypesettingContext and write an implementation of IGraphicsContext. The TypesettingContext in turn has several components, including choosing a font. Hopefully, you would not need to touch the core typesetting engine. (If you do, I would consider that a bug.)