Dear Hans, thanks for your reply. Indeed there are color definitions in `pgfutil-context.def`. However, they are commented out with the message
> % no need for x colors (users can load it if needed) > ... > %\pgfutil@definecolor{gray}{gray}{0.5} If I add > \csname pgfutil@definecolor\endcsname{gray}{gray}{0.5} to my document the gray shows up fine. So that's for sure a feasible workaround. Can you comment on the phrase »no need for x colors (users can load it if needed)«? I'm not quite sure what it means and it suggests that there exists a proper solution to my color problem. Cheers, Henri On 07/12/2016 02:29 PM, Hans Hagen wrote: > On 7/12/2016 1:53 PM, Henri Menke wrote: >> Dear list, >> >> I wanted to draw some nice pictures using TikZ and pgfplots, but then I >> noticed that the colors of the ticks in my pgfplots graph were unusually >> bright and it looked very weird. So I set up a test >> >>> \usemodule[tikz] >>> \starttext >>> \starttikzpicture >>> \draw[help lines,very thick] (0,0) -- (1,0); >>> \stoptikzpicture >>> >>> \externalfigure[test-crop] >>> \stoptext >> >> where I produced test-crop.pdf from the following plain TeX sample, >> which I also typeset with LuaTeX 0.95 (to make sure it's not a LuaTeX >> regression). >> >>> \input luatex85.sty >>> \input tikz >>> \tikzpicture >>> \draw[help lines,very thick] (0,0) -- (1,0); >>> \endtikzpicture >>> \bye >> >> Attached you find the output of the ConTeXt example and you can see that >> the color of the upper line (the one produced with TikZ inside ConTeXt) >> has a much brighter color than the one produced with plain TeX. >> >> I'm using ConTeXt MkIV distributed with TL 2016. >> >> How can I adjust the colors in ConTeXt to match the ones produced by >> plain TeX? I need the adjustment in that direction, because I also have >> old images produced with plain TeX/LaTeX that I'd like to seamlessly >> integrate in my ConTeXt documents. > > you need to figure out the default definitions in tikz then (i suppose > 'help lines' is related to some color) > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- > ___________________________________________________________________________________ > > If your question is of interest to others as well, please add an entry > to the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________