playing colors

playing colors

[Hans van der Meer]

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Started for myself some learning on colors in ConTeXt. In the manual there is a nice colorpalette shown (section 6, page 141). However, I cannot reproduce this. The following minimal example shows colored texts, but \showcolor[color-name] just produces black boxes with ominous zeroes behind it.
What am I missing here? The wiki didn't procure more information then the manual.

Hans van der Meer

\setuppapersize[A5][A5]
\switchtobodyfont[20pt]
\starttext
\color[red]{hello} \quad
\color[green]{hello} \quad
\color[cyan]{hello} \quad
\showcolor[red]
\showcolor[green]
\showcolor[cyan]
\stoptext


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Re: playing colors

[Wolfgang Schuster]

Am 01.03.2011 um 14:37 schrieb Hans van der Meer:

> Started for myself some learning on colors in ConTeXt. In the manual there is a nice colorpalette shown (section 6, page 141). However, I cannot reproduce this. The following minimal example shows colored texts, but \showcolor[color-name] just produces black boxes with ominous zeroes behind it.
> What am I missing here? The wiki didn't procure more information then the manual.

The command is used to show all the defined colors in a colo-xxx.(mkii|mkiv) file, e.g.

\starttext
\showcolor[rgb]
\stoptext

Wolfgang

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Re: playing colors

[Otared Kavian]

On 1 mars 2011, at 16:25, Wolfgang Schuster wrote:

> 
> Am 01.03.2011 um 14:37 schrieb Hans van der Meer:
> 
>> Started for myself some learning on colors in ConTeXt. In the manual there is a nice colorpalette shown (section 6, page 141). However, I cannot reproduce this. The following minimal example shows colored texts, but \showcolor[color-name] just produces black boxes with ominous zeroes behind it.
>> What am I missing here? The wiki didn't procure more information then the manual.
> 
> The command is used to show all the defined colors in a colo-xxx.(mkii|mkiv) file, e.g.
> 
> \starttext
> \showcolor[rgb]
> \stoptext
> 
> Wolfgang

Hi Hans,

Indeed as Wolfgang points out, in the file 
	colo-ini.mkii
it is said that:

%D But let's not forget that we also have the more traditional
%D non||related colors. These show up after:
%D
%D \starttyping
%D \showcolor [name]
%D \stoptyping
%D
%D Where \type{name} for instance can be \type{rgb}.

Actually « name » can be also xwi or pra. There another command is also given, \showcolorgroup,  for showing colors such as in:
	\showcolorgroup [red]    [vertical,name,number]
or
	\showcolorgroup [red]  

And the following can be used to see the setups:

	\showsetups{showcolor}

(Actually in the source there is a mistyping « \showsetup » instead of « \showsetups »).

Best regards: OK
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