Why not make RenderContext of Plot selectable by user

I made an Extension for Plot named PlotEx using writeablebitmap method to render sharps.
This method brought me dozens of performance improvement when PlotEx was rendering 5,000 points with 500 FPS.
Why must I make a new class, PlotEx?
It's because Plot doesn't include IRenderContext, but use a specified SharpRenderContext.
If so, IRenderContext becomes meaningless.

BTW, How to contribute my work about Plot?

It would be very interesting to see how you have implemented this render context based on writable bitmaps!
Can you create a fork? Then make a pull request, and I will review!

objo wrote:

It would be very interesting to see how you have implemented this render context based on writable bitmaps!
Can you create a fork? Then make a pull request, and I will review!

Hi objo, I don't know how to create a fork and make a pull request. I put source code on a network disk. You can download it yourself.
Supporting directly downloading with IE:
Download OxyPlot.Wpf.Extension (for WPF only)

And, objo, may you feel like this one: Change Current DrawingContext to one using OpenGL