[Libreoffice-ux-advise] [Bug 80196] standardize color palette using mathematically generated colors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80196

--- Comment #17 from Wade D. Peterson <wadep_silicore at yahoo.com> ---
@ Owen Genat "screenshot of color picker"

(In reply to comment #16)
> Created attachment 105106 [details]
> Screenshot of color picker using the provided SOC.

I think you're close.  It would work better if the grey scale tones between
BLACK (0% grey) and WHITE (100% grey) were aligned with the color grey scale
values.  If you choose the same values that were in my chart it would mean 12
rows and 13 columns (or, alternatively 13 rows and 12 columns if you do in the
other direction).  My diagram uses twelve (12) color vectors plus grey, but you
could go with 3, 6, 12, 24, 48, etc.

You can see the idea better if you print out your color picker on a black and
white laser printer.  That's something akin to how a person with a color
deficiency might see them, too.  The lighter tones for all the colors should
line up with the corresponding grey tone.  That will give the color deficient
person, as well as the graphic artists designing colors for B&W printers, a
fighting chance to make their documents look good.

In fact, I use the color palette to evaluate laser printers.  For example, a
Xerox Phaser 5500 produces a substantially different grey tone pattern (and
color rendition) than a Lexmark M1145.  I don't know for sure, but I suspect
this might be because of their toner powder or their color calibration.  Also,
most of the laser printers are weighted toward the blue end of the scale.  That
means that blues turn out black.  That's not done on purpose; its a problem for
them -- a remnant of their technology.

I'm looking at the standard color palette in much the same way as television
color bars.  In fact, I'll most a comparison so that you can see how that
works.

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