Graphics Library for D

[Zz]

For 2D I like Anti Grain Geometry.

http://www.antigrain.com/

When used with the C++ Agg2D wrapper things become super easy.

Here is the online documentation of Agg2D from the Delphi port of 
AGG
http://www.crossgl.com/aggpas/documentation/index.html

For another view here is an interesting article on how AGG works 
in Haiku and covers some of the compile time properties of AGG
https://www.haiku-os.org/documents/dev/painter_and_how_agg_works

There is also a c# port.

Zz