The terminfo entries from the standard ncurses distribution have
peculiar settings for entries supporting 24 bit colors. The direct
entries mix indexed and RGB values into an incompatible mess.
This commit adds a simple workaround for the tty port. Colors are
initialised as if only 8 ANSI colors are available. This does not
affect color customisation from the symsets.
The curses port is affected as well. But I am not yet comfortable to
refactor a large part of the code for an absolute edge case.
Patric Mueller
207db14301