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From: swick@ATHENA.MIT.EDU (Ralph R. Swick)
Newsgroups: comp.windows.x
Subject: Re: Visual 640 term and colors?
Message-ID: <8811011523.AA02242@LYRE.MIT.EDU>
Date: 1 Nov 88 15:23:12 GMT
References: <1481@titan.>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: DEC/MIT Project Athena
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> xterm*Background:		green
> xterm*Foreground:		#006464
>
> Which do you think is the correct behavior?

When converting RGB values to monochrome, the sample server(s) compute
an intensity value as (.39R + .5G + .11B) and assign black if this
value is less than 50%, white otherwise.  Since green is normally
defined as (0%, 100%, 0%), it becomes white and (0%, 39%, 39%) becomes
black.  Other algorithms may be substituted...