W3C home > Mailing lists > Public > www-style@w3.org > August 1996

Re: transparancy and RGB()

From: Chris Josephes <cpj1@winternet.com>
Date: Wed, 21 Aug 1996 19:12:28 -0500 (CDT)
To: Mike Wexler <mwexler@mv.us.adobe.com>
cc: Chris Lilley <Chris.Lilley@sophia.inria.fr>, www-style@w3.org
Message-ID: <Pine.SOL.3.91.960821190530.1491B-100000@tundra>
On Tue, 20 Aug 1996, Mike Wexler wrote:
> Wouldn't it bet better to do
>     p { background: rgba(20%,0%,0%,50%) } /* fine value = alpha (opaqueness) */
> In the first example it is called rgb, but for values are supplied.
> Second, in computer graphics Red, Green, Blue, Alpha is much more common
> that Red, Green, Blue, Transparency.

Yes!  I was trying to remember what the heck to call the transparancy 
value (my original inspiration of this idea was the color palette 
system for the Next computer, and after a brief check though some old 
documentation I remembered it was called the Alpha channel).

I like the idea of using "rgba" since it does clearly indicate the usage 
of a transparancy channel to the person writing/reading the stylesheet.

----------------------- Christopher P. Josephes ----------------------------
Email |  mailto:cpj1@winternet.com
Web   |  http://www.winternet.com/~cpj1/
Received on Wednesday, 21 August 1996 20:14:48 UTC

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