2005-01-15  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpchannel.c (gimp_channel_new*): don't require a
	non-NULL color parameter (just leave the default color untouched
	if NULL is passed).

	* app/actions/channels-commands.c
	* app/core/gimpchannel-select.c: pass NULL as color for temporary
	channels or channels where we used to pass black.