Subject: Bug#3175: xonix colors bad for colorblind

From: Ian Jackson <[email-masked]>
Date: Mon, 3 Jun 96 15:50 BST

Mike Coleman writes ("Bug#3175: xonix colors bad for colorblind"):
> Package: xonix
> Version: 1.4-2
>
> The color scheme used by xonix for the "flyer" sprites makes it virtually impossible for
> those with red/green colorblindness to play the game.
>
> I don't really grok the XPM format, but the appended patch seems to work as
> one possible solution.
...
> --- flyer.xpm	Tue May  2 02:56:24 1995
> +++ flyer.xpm.new	Fri May 31 17:46:30 1996
> @@ -2,7 +2,7 @@
>  static char * flyer_xpm[] = {
>  "8 8 3 1",
>  " 	c forest green",
> -".	g4 yellow	c tomato",
> +".	c yellow",
>  "X	c black",
>  "   ..   ",
>  "  .XX.  ",

I'd like to point out that some people with anomalous colour
vision[1], me for example, find computer-yellow and computer-green
very hard to distinguish.

Can this be made configurable ?

Ian.

[1] I'm not being `politically correct', it's just that
`colourblindness' gives the impression of being unable to see (the
relevant) colour differences at all.

---

From: [email-masked] (Bruce Perens)
Date: Mon, 3 Jun 96 12:35 PDT

> relevant) colour differences at all.

8% of U.S. males are red-green color-blind. The defect is actually in the
pigment that colors the red-green receptor, and it's on the X chromosome so
that it generally happens to males, not females. 1% are impaired on one of
the other color axes. Very few have monochromatic vision.

Don't you just hate those bi-color red-green LEDs? I can't tell what color
they are at all. I need an ohmmeter to read resistors reliably, and I don't
pick colors for the movie. Other than that, it's never bothered me.

	Bruce
--
Pixar's Toy Story: Over 1/3 Billion dollars world box office so far.

Bruce Perens AB6YM          [email-masked]            http://www.hams.com/

---

From: Sven Rudolph <[email-masked]>
Date: Tue, 4 Jun 1996 00:46:26 +0200

> Can this be made configurable ?

While both I and the original xonix author agree that this were nice
neither he nor I have too much spare time. I'll add it to the TODO
file.

The above-proposed patch helps in the majority of problem cases, so I
use it.

	Sven
--
Sven Rudolph <[email-masked]> ; WWW : http://www.sax.de/~sr1/