Adds support for the special "None" colour in XPMs by

replacing them with the -background color. by Bernhard R. Link in #220965

Index: xli-1.17.0+20061110/xpixmap.c

===================================================================

--- xli-1.17.0+20061110.orig/xpixmap.c

+++ xli-1.17.0+20061110/xpixmap.c

@@ -463,7 +463,16 @@ Image *xpixmapLoad(char *fullname, Image

 			} else

 				p = buf;

-			if (!xliParseXColor(&globals.dinfo, p, &xcolor)) {

+			if( strcmp(p, "None") == 0 ) {

+				if( image_ops->bg ) {

+					if (!xliParseXColor(&globals.dinfo, image_ops->bg, &xcolor)) {

+						fprintf(stderr, "xpixmapLoad: Bad background color name '%s'\n", image_ops->bg);

+						xcolor.red = xcolor.green = xcolor.blue = 0;

+					}

+				} else {

+					xcolor.red = xcolor.green = xcolor.blue = 0;

+				}

+			} else if (!xliParseXColor(&globals.dinfo, p, &xcolor)) {

 				fprintf(stderr, "xpixmapLoad: %s - Bad color name '%s'\n", name, p);

 				xcolor.red = xcolor.green = xcolor.blue = 0;

 			}