W3C home > Mailing lists > Public > public-evangelist@w3.org > July 2007

Re: rephrase "GIF or PNG" slug as an action sentence

From: Chris Lilley <chris@w3.org>
Date: Wed, 11 Jul 2007 13:51:52 +0200
Message-ID: <1751801585.20070711135152@w3.org>
To: Karl Dubost <karl@w3.org>
Cc: Dan Connolly <connolly@w3.org>, public-evangelist@w3.org

On Wednesday, July 11, 2007, 4:22:33 AM, Karl wrote:

KD> Le 11 juil. 2007 à 00:37, Dan Connolly a écrit :
>>   http://www.w3.org/QA/Tips/png-gif
>>   2006/11/24 01:20:24
>> Er... tips should be sentences of the form "do something", no?

KD> no strong feeling, but why not. It seems reasonable.

>> so perhaps:
>>  Tip of the Day: Choose graphics formats (GIF or PNG) carefully
>> or better:
>>  Tip of the Day: Consider PNG instead of GIF for images

KD> Yep. PNG had a big problem in IE 5 to 6. Alpha channel was not  
KD> supported.

It was supported to the extent that GIF was, ie fully transparent colors were indeed transparent.

They made a really poor implementation for semi-transparent colors though.

KD> See IE blog about that
KD> http://blogs.msdn.com/ie/archive/2005/04/26/412263.aspx
KD> But as of today, it seems to be a reasonable choice for more people  
KD> since the release of IE7.

>> p.s.
>> I'm a bit surprised to see "GIF's strong point is that it is very  
>> widely
>> supported and thus well established as the default choice for simple
>> graphics on the Web."

KD> See above.

And not ethat PNG had the same leverl of support that GIF had when the last major browser to add NG support), IE added it in IE4. Netscape added it in Netscape 4.04. Most of the other browsers had it earlier than Netscape.

 Chris Lilley                    mailto:chris@w3.org
 Interaction Domain Leader
 Co-Chair, W3C SVG Working Group
 W3C Graphics Activity Lead
 Co-Chair, W3C Hypertext CG
Received on Wednesday, 11 July 2007 11:53:33 UTC

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