Several requests here related to backgrounds and improvements for compositing workflow.
1) the current white background is great (but I can never get it completely white. Can we just have an option for pure white as background?
2) can we have an option for a black background (or user selected color) AND allow it to be PURE black, or PURE <insert color here>
3) this has been requested before but just gonna do it here as well because its related. Transparent png, or even just tga with an alpha channel included, would be VERY useful for compositing workflows.