Re: ConTeXt-defined colours broken in TikZ in MkIV with latest betas

[Hans Hagen <pragma@wxs.nl>]

On 4/16/2015 11:29 PM, Christian Prim wrote:
> Hi Hans
>
> sorry to ask again. But the different color handling between
> context-version before 2015.04.14 00:54 and
> context-version 2015.04.14 00:54 is remarkable and annoying.
>
> See attached pdf-documents. Both have exactly the same source:
>
> \usemodule[tikz]
> \setupbodyfont[40pt]
> \starttext
> \definecolor[mycola][c=0.23,m=0.58,y=0.88,k=0.45]
> \definecolor[mycolb][c=0.115,m=0.29,y=0.44,k=0.225]
> \definecolor[mycolc][c=0.055,m=0.145,y=0.22,k=0.1125]
>
> \starttikzpicture
> \node[fill=mycola,rectangle, minimum height=4cm,minimum
> width=2cm,anchor=south west] {\startcolor[mycola]T\stopcolor};
> \node[fill=mycolb,rectangle, minimum height=4cm,minimum
> width=2cm,anchor=south west] at (2,0) {\startcolor[mycolb]T\stopcolor};
> \node[fill=mycolc,rectangle, minimum height=4cm,minimum
> width=2cm,anchor=south west] at (4,0) {\startcolor[mycolc]T\stopcolor};
> \stoptikzpicture
> \stoptext
>
> I write in each box the letter T with exactly the same color as the
> underlying box. Textcolor is set using context, fill color of the box is
> set using tikz.
>
> old.pdf shows the correct color handling. The letter T has exactly the
> same color as the box and therefore disappears.
>
> With newest beta (new.pdf) the letter T is visible.
>
> Must I now stay with an old beta or can this "bug" be fixed? Perhaps
> it's a bug in tikz...

i found out that it relates to the lack of gray support (which in fact 
seems to be rgb support)

so the next beta might work ok for you (no upload yet)

Hans


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