Add litmus test

Original patch by Dylan O'Donnell

src/decl.c

@@ -216,7 +216,7 @@ NEARDATA struct c_color_names c_color_names = {
 	"black", "amber", "golden",
 	"light blue", "red", "green",
 	"silver", "blue", "purple",
-	"white"
+	"white", "orange"
 };
 
 struct menucoloring *menu_colorings = NULL;