Shades: a program to lighten or darken any (background)
color of any screen.

It's a commodity, it has a hotkey sequence (definable
through tooltypes), you can set different light/dim values
for different screens and it will remember those settings
(until you switch of your Amiga, that is).

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 9205   21680  42.5% -lh5- ef70 Jul 24  1996 Shades
[generic]                 4448   11388  39.1% -lh5- 3276 Sep 20  1996 Shades.guide
[generic]                 1525    3134  48.7% -lh5- 5480 Jun 18  1996 Shades.guide.info
[generic]                 1505    3006  50.1% -lh5- 36b7 Jun 18  1996 Shades.info
[generic]                  289     463  62.4% -lh5- 1876 Sep 20  1996 shades.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         5 files   16972   39671  42.8%            Oct  4  1996