[Dev-luatex] colors, colorstack

[Patrick Gundlach]

>> 1) Do you have a feeling if pdfcolorstacks makes sense with do-it-yourself nodelists?
> 
> It should make no difference if you do it at the tex end of lua end, apart maybe from assumptions with respect to the whatsit ending up before end-of-par glue or after begin-of-par indentation and dir boxes

Good point, thanks.

> 
>> more important:
>> 
>> 2) Is there something like \pdfcolorstackinit in lua?
> 
> I never used color stacks but I assume that tex.pdfcolorstackinit works ok then

Couldn't find that one. Not-yet-implemented-error?

I've got it working now with TeX/Lua glue code but if it isn't there, I'll create a tracker item.

Patrick