2003-09-11  Sven Neumann  <sven@gimp.org>

	* themes/Default/images/Makefile.am
	* themes/Default/images/stock-transparency-[16|24].png: new icon.

	* libgimpwidgets/gimpstock.[ch]: register as GIMP_STOCK_TRANSPARENCY.

	* app/gui/image-menu.c
	* app/gui/layers-menu.c: use the new icon for "Add Alpha Channel".

	* app/widgets/gimplayertreeview.c: replaced the "Keep Trans."
	button with a check button plus the new icon (bug #121784).