Banlu Kemiyatorn wrote:
On 11/24/06, Guenther Noack <[EMAIL PROTECTED]> wrote:
Hi!
On Fri, Nov 24, 2006 at 01:36:27PM +0800, Sheldon Gill wrote:
> Well, CIE would be good...
>
> commercially I'd say PANTONE...
I don't think we can refer to pantone color without taking risk of being
sued.
INAL I think we can refer without issue. We can't manufacture color cards, dyes
or code a software system which uses it without license.
>
> In the end, though, you are working in RGB so defining an RGB color
space
> should suffice.
I'm just curious. What advantages do we have from that? Do the icons
look better
then when you print them out on a professional printer?
I don't think we should worry about printing the UI items that much.
But it is neccessary for the backend to support that so we can see the
actual preview of an NSImage. This would required us to extend
composite ops in the display system or backend by using color
library that is capable of reading ICC profiles eg. lcms.
Not just the composite ops and not just the ICC profiles. Unfortunately it gets
more complicated than that. Some file formats do other things. Like PNG can
have just a gamma.
> The image you give (from Adobe ImageReady) has gamma but no ICC
profile. I
> assume its supposed to be sRGB but there is nothing to say that.
There's
> nothing to say your monitor is calibrated accordingly either so its
pure
> conjecture as to whether the gamma is valid.
IMHO, all UI elements (icons, pixels, system colors) should be assumed
to be displayed with sRGB anyway.
And I don't think the system should have to convert UI items from
other possible color space beside RGB. Because conversions requires
significant computation.
Do you realise that there are a dozen *different* RGB color spaces defined and
in use?
> On a separate issue, I think you should carefully choose the exact
colours
> so that they display well using at least 5-bit color or a 256 color
indexed
> palatte. These better suit smaller devices.
I don't have a problem with the current suggested color list. It is just a
style-sheet that we(?) like them. It's natural to assume that they are sRGB
(from my reasons above about color profile for UI elements). However,
if you are a graphic designer and your monitor wasn't calibrated right.
And you expect anyone to share the wisdom of those palettes. Then it is
your fault ;-D
You're developing a palette, by definition a limited selection of colours.
You're going to use these colours in the UI to develop the style so sticking to
the palette is the right idea.
If the palette works well in 16-color and 256-color (with the right colour
selection) then it requires no more work on the part of designers.
Regards,
Sheldon
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