gEDA-bug: [Bug 799926] Re: gschem grid barely visible with lightbg theme

[DJ Delorie <799926@xxxxxxxxxxxxxxxxxx>]

Way back when, I got to work with someone who was way more knowledgeable
about such things than I, and he made an interesting comment.  If you
have a pure white background, you can't put anything brighter than it on
the screen.  Even with only a 95% grey background, a pure white area
appears visually "brighter".  In gschem, the 95% grey main window is
visually distinct from the pure-white toolbar and status bars, for
example.

I just checked the current gschem lightbg on all four of my monitors,
from an out of calibration cheapie to my $2000 perfect-color main
monitor.  The grid lines have similar contrast across all of them, and
it's just right (IIRC I argued for the subtle grid lines too, back
when).  It wasn't just Peter's preferences, we tested it across a range
of monitors before settling on what we have now.

As for desktops, there are ZERO apps on my desktop that are 100% pure
white.  Most are either 95% grey or a pale beige (#ffeedd is one of my
favorites).

Note also: consumers prefer "warm white" light bulbs over "cool white".

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https://bugs.launchpad.net/bugs/799926

Title:
  gschem grid barely visible with lightbg theme

Status in GPL Electronic Design Automation tools:
  Fix Committed

Bug description:
  The grid lines of gschem are pretty low key with the current gschem-
  colormap-lightbg. This depends of course on the contrast and
  brightness settings of the monitor. However, grid lines are hardly
  visible on four of five TFT monitors I have access to, when settings
  are in default position. There is almost no difference visible between
  minor and major grid lines.

  Find attached a patch to the lightbg color profile for slightly more
  pronounced grid lines.

  ---<)kaimartin(>---

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