diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 8d261b7..832933a 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -5352,6 +5352,8 @@
 	{"DarkMagenta",  "#BB00BB"},
 	{"DarkGrey",	 "#BBBBBB"},
 	{"DarkYellow",	 "#BBBB00"},
+	{"Grey90",	 "#E5E5E5"},
+	{"Gray90",	 "#E5E5E5"},
 	{NULL, NULL}
     };