Most likely, yes and then some - it is gdk_color_parse() doing the conversion, which in GTK+1 calls XParseColor() and in GTK+2, pango_color_parse(). Either function knows 750+ color names:don570 wrote:Do you support all the SVG colors?
/usr/share/X11/rgb.txt
pango-X.Y.Z/pango/pango_color_table.h