[Gzz] Foreground (was: Re: Background)

[Benja Fallenstein]

Tuomas Lukka wrote:

> The official way to set the background color now is that the *Shower*,
> in generate() puts a SolidBgVob (or later also ImageBgVob or others) with
> the desired color into the vobscene first, at a large depth. (It should
> be coordless, but that's difficult for AWT).

In related news, we also want to set the *foreground* from the Shower, 
somehow. A background vob doesn't seem to be the right tool for that. Is 
passing it to the vobscene at creation time the correct abstraction? The 
problem is what that means when putting one vobscene into another (e.g. 
for prerendering cells, or in the current pp viewport stuff). Or is 
passing it to OrthoCoorder.renderVobs() right? Then it would have to be 
passed to the AWTScreen at creation time somehow, so that AWTScreen 
could pass it on.

- Benja