Re: [Gimp-gui] GIMP Theme UI now and future.

[Elle Stone <ellestone ninedegreesbelow com>]

On 01/24/2016 12:29 PM, Sven Claussner wrote:
> > > - A pure white theme would reflect the proper appearance of the image
> > > printed on white paper.
> >
> > So should the whitest theme be even whitest? ("pure white" #FFFFFF even?)
>
> Elle's e-mail from 23.01.2016, 5:29 PM describes it best.
> As Elle points out, the padding color is the most important piece for
> adjustments here. We could try out Elle's example colors or perhaps
> check with one/some of the industry standard ICC profiles from
> http://www.colormanagement.org/index_en.html if they held useful
> information for us.

The "printer-paper" profiles that I checked are for making photographic 
prints. As far as I know there is no industry standard for this type of 
profile, rather printing establishments and individuals either make 
their own custom profiles or else they use profiles supplied by the 
company that makes the printer or the paper.

The colord and basICColor print profiles overlap the profiles from 
colormanagement.org. These profiles (and most? all? of the output device 
profiles from colormanagement.org) are CMYK profiles, which are relevant 
for graphic design and mass printing in newspapers and magazines, but so 
much not for photographic prints or digital prints for display on the web.

The LAB values for the white points for the colord and basICColor CMYK 
profiles range from 80 to 96. The lower values are for newsprint 
profiles, which have a low white point and also very high black points 
(and an exceedingly small color gamut).

LAB L=80 corresponds to sRGB R=G=B=145, HTML #919191
LAB L=85 corresponds to sRGB R=G=B=168, HTML #a8a8a8

I will hazard a guess that people using GIMP for editing images for 
eventual CMYK output would prefer medium or light themes.

Elle