Re: What Is The Point Of Dark Mode?

Anton Shepelev <anton.txt@g{oogle}mail.com> writes:

Richmond:
>

But this web page presents a different view.
>
  https://www.visualexpert.com/Resources/cfaqPart6.html
>
In the examples of the word "hello" blue on black looks quite clear
to me, but then so does black on white. But blue on red and red on
blue are disasters.

>
While working on a NetPBM tool for the adjustment of saturation[1], I
learned a bit about colors, partly from direct experience.  In the RGB
triplet, blue is the darkest color and green the lightest.  Perceived
saturation is an inverse[2] relation to perceived brightness.  The six
main colors in the order of increasing brightness and (generally)
decreasing saturation are: BRMGCY, with blue the darkest and yellow
the lightest color.
>
Blue on black is bad because of poor contrast, as well as pure red on
pure blue, and yellow on white.  Also see how ugly green on white on
that page is -- the exact combination in the default colorscheme of
Microsoft SQL Management Studio!
>
Attempting to increase the brightness of blue by adding red and green
quickly "dillutes" its saturation.  For this reason, good dark schemes
tend to use bluish colors for the background or comments (for there
may be more than one), and green-yellow collors for the foreground.
Converselty, white schemes have to use dark colors for the foreground,
which significantly decreases the variety of hues, and that is a
serious disadvatage.  ____________________
>
1. Example:
   <https://freeshell.de/antonius/img_host/pamaltsat-ex01-v.png>
>
2. The indefinite article is intentional, because it is a general
   tendency rather than an exact analytical relation.

Another thing to consider though is that blue light refracts more than
redlight. So if eyesight is becoming poor, it may still be possible to
focus on blue writing without glasses, while red will no longer be
possible.