Re: [png-mng-misc] BGRA, ARGB, etc. suggestion

[Glenn Randers-P. <gl...@gm...>]

On Mon, Dec 21, 2015 at 12:43 AM, John Bowler <
joh...@gm...> wrote:

> ----- John Bowler <joh...@gm...> wrote:
>> > On Sun, Dec 20, 2015 at 3:17 PM, Glenn Randers-Pehrson <
>> gl...@gm...>
>> > wrote:
>> > That phrase (*device-dependent greyscale*) is totally
>> > devoid of meaning
>>
>> PNG-1.2 spec, paragraph 14.3, explains what that phrase means.
>
>
> I asked my wife "what colour is that" and she said, approximately, "blue,
> sort of grey round there, yellow" (it was an image of some food).  I then
> asked "what greyscale is that" and she said, "what do you mean, grey sch?"
>

I asked my wife questions about the spec, too, when it was in draft form.
She suggested that we include a glossary, so we did.


> There are 14 uses of greyscale in 1.2 (using the American spelling), not
> one of them attempts to define what it means.
>

It's in the glossary.  The glossary even survived the ISO editing (it's
called "abbreviated terms" there).

Glenn