[NTG-context] Re: transparent color

[Henning Hraban Ramm <texml@fiee.net>]

Am 06.05.24 um 16:01 schrieb Jacob Kauffmann via ntg-context:
> 
>> Am 06.05.2024 um 10:41 schrieb Hans van der Meer via ntg-context <ntg-context@ntg.nl>:
>>
>> I would like to use a transparent version of an existing color. Thus
>> \definecolor[transparentcolor][color,t=0.2,a=1]
>> instead of
>> \definecolor[transparentcolor][r=..,g=..,b=..,t=0.2,a=1]
>> because I do not know the rgb values of the color that must be made transparent, only its name.
>>
>> How to accomplish?
> 
> I think like this:
> 
> \definecolor[myred][r=.5]
> \defineprocesscolor[myredish][myred][a=1,t=.2]

Oh, another one that I didn’t know. (Of course it’s in the source, but 
only Wolfgang knows all of it. ;-)

Hraban

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