New 'rendererDetail' system expression. This requires WebGL support and currently only supported by Chrome and IE. It returns a string with the renderer hardware and vendor information, e.g. "NVIDIA GeForce GTX 660", "NVIDIA Tegra", "Adreno 330" etc. or "(unavailable)" if not supported or unknown. The exact content varies and you should not rely on this string having any particular content, but it can be useful to search for keywords and perhaps adapt the default display quality settings accordingly, or identifying which GPU is really in use in dual-GPU systems.