-.SH PORTABILITY
-This implementation satisfies XSI Curses's minimum maximums
-for \fBCOLORS\fP and \fBCOLOR_PAIRS\fP.
-.PP
-The \fBinit_pair\fP routine accepts negative values of foreground
-and background color to support the \fBuse_default_colors\fP(3X) extension,
-but only if that routine has been first invoked.
-.PP
-The assumption that \fBCOLOR_BLACK\fP is the default
-background color for all terminals can be modified using the
-\fBassume_default_colors\fP(3X) extension.
-.PP
-This implementation checks the pointers,
-e.g., for the values returned by
-\fBcolor_content\fP and \fBpair_content\fP,
-and will treat those as optional parameters when null.
-.PP
-X/Open Curses does not specify a limit for the number of colors and
-color pairs which a terminal can support.
-However, in its use of \fBshort\fP for the parameters,
-it carries over SVr4's implementation detail for the compiled
-terminfo database, which uses signed 16-bit numbers.
-This implementation provides extended versions of those functions
-which use \fBshort\fP parameters,
-allowing applications to use larger color- and pair-numbers.
-.PP
-The \fBreset_color_pairs\fP function is an extension of ncurses.