diff --git a/xyntax.c b/xyntax.c
index 8cc5968..2defdd3 100644
--- a/xyntax.c
+++ b/xyntax.c
@@ -144,28 +144,28 @@ void syntax_define_separators (char * separator) {
 	syntax_separator = separator;
 }
 
-void syntax_define_default (int string_colour, int string_effect, int number_colour, int number_effect) {
+void syntax_define_default (int case_sensitive, int string_colour, int string_effect, int number_colour, int number_effect) {
 	(void) syntax_insert (1, 0, " \t\r\n",    "",               '\0', COLOUR_WHITE,  EFFECT_BOLD);
 	(void) syntax_insert (0, 0, "\"",         "\"",             '\\', string_colour, string_effect);
 	(void) syntax_insert (1, 1, "0123456789", syntax_separator, '\0', number_colour, number_effect);
-}
-
-void syntax_define_words (int case_sensitive, char * * word_array, int word_count, int word_colour, int word_effect) {
-	int word = 0;
-
-	for (word = 0; word != word_count; ++word) {
-		(void) syntax_insert (0, 1, word_array [word], syntax_separator, '\0', word_colour, word_effect);
-	}
 
 	if (case_sensitive != 0) {
 		(void) syntax_insert (1, 1, "abcdefghijklmnopqrstuvwxyz", syntax_separator, '\0', COLOUR_WHITE, EFFECT_NORMAL);
 		(void) syntax_insert (1, 1, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", syntax_separator, '\0', COLOUR_WHITE, EFFECT_BOLD);
-		(void) syntax_insert (1, 1, "_",                          syntax_separator, '\0', COLOUR_PINK,  EFFECT_BOLD);
+		(void) syntax_insert (1, 1, "_",                          syntax_separator, '\0', COLOUR_GREY,  EFFECT_BOLD);
 	} else {
 		(void) syntax_insert (1, 1, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_", syntax_separator, '\0', COLOUR_WHITE, EFFECT_NORMAL);
 	}
 }
 
+void syntax_define_words (char * * word_array, int word_count, int word_colour, int word_effect) {
+	int word = 0;
+
+	for (word = 0; word != word_count; ++word) {
+		(void) syntax_insert (0, 1, word_array [word], syntax_separator, '\0', word_colour, word_effect);
+	}
+}
+
 void syntax_define_range (char * range_begin, char * range_end, char range_escape, int range_colour, int range_effect) {
 	(void) syntax_insert (0, 0, range_begin, range_end, range_escape, range_colour, range_effect);
 }
diff --git a/xyntax.h b/xyntax.h
index 69accd6..1e8ceab 100644
--- a/xyntax.h
+++ b/xyntax.h
@@ -33,9 +33,9 @@ extern void syntax_define_style (int *, int *);
 
 extern void syntax_define_separators (char *);
 
-extern void syntax_define_default (int, int, int, int);
+extern void syntax_define_default (int, int, int, int, int);
 
-extern void syntax_define_words (int, char * *, int, int, int);
+extern void syntax_define_words (char * *, int, int, int);
 
 extern void syntax_define_range (char *, char *, char, int, int);