cups/ppd-cache.c: synthetize grayscale if only color is defined
@@ -3790,6 +3790,9 @@ _ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
PRINTF_COLOROPTION("RGB", _("Color"), CUPS_CSPACE_SRGB, 8)
default_color = "RGB";
+
+ if (ippGetCount(attr) == 1 || !ippContainsString(attr, "sgray_8") && !ippContainsString(attr, "black_1") && !ippContainsString(attr, "black_8"))
+ PRINTF_COLOROPTION("Gray", _("GrayScale"), CUPS_CSPACE_SW, 8)
}
else if (!strcasecmp(keyword, "adobe-rgb_16") || !strcmp(keyword, "ADOBERGB48") || !strcmp(keyword, "ADOBERGB24-48"))
{
