Rendering contexts

I see there has been some work to support multiple rendering contexts. At the moment, only ShapesRenderContext is working. What's the status of the other contexts? Especially DrawingRenderContext. Seems a little outdated and incomplete. Has there been any testing into this area that merits further pursuit?

I did not see any performance improvements with the other rendering contexts for WPF, so only ShapesRenderContext has been updated.
There were also some visual issues with the other rendering contexts that I did not have with the one based on shapes.
To improve performance in WPF, I would rather look at DirectX based solutions as in VisiBlox and LightningChart!