diff --git a/src/compiler/compiler.c b/src/compiler/compiler.c
index 077bcc15b..675f32bb6 100644
--- a/src/compiler/compiler.c
+++ b/src/compiler/compiler.c
@@ -900,16 +900,7 @@ static void setup_bool_define(const char *id, bool value)
 	setup_define(id, expr_new_const_bool(INVALID_SPAN, type_bool, value));
 }
 
-#if FETCH_AVAILABLE
-const char * vendor_fetch_single(const char* lib, const char* path) 
-{
-	const char *resource = str_printf("/c3lang/vendor/releases/download/latest/%s.c3l", lib);
-	const char *destination = file_append_path(path, str_printf("%s.c3l", lib));
-	const char *error = download_file("https://github.com", resource, destination);
-	return error;	
-}
-
-static bool use_ansi(void)
+bool use_ansi(void)
 {
 	switch (compiler.context.ansi)
 	{
@@ -927,6 +918,15 @@ static bool use_ansi(void)
 #endif
 }
 
+#if FETCH_AVAILABLE
+const char * vendor_fetch_single(const char* lib, const char* path) 
+{
+	const char *resource = str_printf("/c3lang/vendor/releases/download/latest/%s.c3l", lib);
+	const char *destination = file_append_path(path, str_printf("%s.c3l", lib));
+	const char *error = download_file("https://github.com", resource, destination);
+	return error;	
+}
+
 #define PROGRESS_BAR_LENGTH 35
 
 void update_progress_bar(const char* lib, int current_step, int total_steps)
diff --git a/src/compiler/compiler_internal.h b/src/compiler/compiler_internal.h
index daf827379..7be1944bd 100644
--- a/src/compiler/compiler_internal.h
+++ b/src/compiler/compiler_internal.h
@@ -2398,6 +2398,7 @@ bool sema_resolve_array_like_len(SemaContext *context, TypeInfo *type_info, Arra
 bool sema_resolve_type_info(SemaContext *context, TypeInfo *type_info, ResolveTypeKind kind);
 bool sema_unresolved_type_is_generic(SemaContext *context, TypeInfo *type_info);
 
+bool use_ansi(void);
 void print_error_at(SourceSpan loc, const char *message, ...);
 void print_error_after(SourceSpan loc, const char *message, ...);
 void sema_note_prev_at(SourceSpan loc, const char *message, ...);
@@ -2584,7 +2585,6 @@ BinaryOp binaryop_from_token(TokenType type);
 BinaryOp binaryop_assign_base_op(BinaryOp assign_binary_op);
 TokenType binaryop_to_token(BinaryOp type);
 
-
 // ---- static inline function implementations.
 
 INLINE Type *type_no_optional(Type *type)
diff --git a/src/compiler/diagnostics.c b/src/compiler/diagnostics.c
index 2a08a406f..bf82eb010 100644
--- a/src/compiler/diagnostics.c
+++ b/src/compiler/diagnostics.c
@@ -75,6 +75,7 @@ static void print_error_type_at(SourceSpan location, const char *message, PrintT
 	}
 	else if (compiler.build.test_output || compiler.build.benchmark_output)
 	{
+		bool ansi = use_ansi();
 		switch (print_type)
 		{
 			case PRINT_TYPE_ERROR:
@@ -162,18 +163,40 @@ static void print_error_type_at(SourceSpan location, const char *message, PrintT
 	}
 	eprintf("\n");
 
+	bool ansi = use_ansi();
 	if (col_location)
 	{
 		switch (print_type)
 		{
 			case PRINT_TYPE_ERROR:
-				eprintf("(%s:%d:%d) Error: %s\n\n", file->full_path, location.row, col_location, message);
+				if (ansi)
+				{
+					eprintf("(%s:%d:%d) \x1b[31;1mError\x1b[0m: %s\n\n", file->full_path, location.row, col_location, message);
+				}
+				else 
+				{
+					eprintf("(%s:%d:%d) Error: %s\n\n", file->full_path, location.row, col_location, message);
+				}
 				break;
 			case PRINT_TYPE_NOTE:
-				eprintf("(%s:%d:%d) Note: %s\n\n", file->full_path, location.row, col_location, message);
+				if (ansi)
+				{
+					eprintf("(%s:%d:%d) \x1b[1mNote\x1b[0m: %s\n\n", file->full_path, location.row, col_location, message);
+				}
+				else
+				{
+					eprintf("(%s:%d:%d) Note: %s\n\n", file->full_path, location.row, col_location, message);
+				}
 				break;
 			case PRINT_TYPE_WARN:
-				eprintf("(%s:%d:%d) Warning: %s\n\n", file->full_path, location.row, col_location, message);
+				if (ansi)
+				{
+					eprintf("(%s:%d:%d) \x1b[33;1mWarning\x1b[0m: %s\n\n", file->full_path, location.row, col_location, message);
+				}
+				else 
+				{
+					eprintf("(%s:%d:%d) Warning: %s\n\n", file->full_path, location.row, col_location, message);
+				}
 				break;
 			default:
 				UNREACHABLE
@@ -184,13 +207,34 @@ static void print_error_type_at(SourceSpan location, const char *message, PrintT
 		switch (print_type)
 		{
 			case PRINT_TYPE_ERROR:
-				eprintf("(%s:%d) Error: %s\n\n", file->full_path, location.row, message);
+				if (ansi)
+				{
+					eprintf("(%s:%d) \x1b[31;1mError\x1b[0m: %s\n\n", file->full_path, location.row, message);
+				}
+				else 
+				{
+					eprintf("(%s:%d) Error: %s\n\n", file->full_path, location.row, message);
+				}
 				break;
 			case PRINT_TYPE_NOTE:
-				eprintf("(%s:%d) Note: %s\n\n", file->full_path, location.row, message);
+				if (ansi) 
+				{
+					eprintf("(%s:%d) \x1b[1mNote\x1b[0m: %s\n\n", file->full_path, location.row, message);
+				} 
+				else
+				{
+					eprintf("(%s:%d) Note: %s\n\n", file->full_path, location.row, message);
+				}
 				break;
 			case PRINT_TYPE_WARN:
-				eprintf("(%s:%d) Warning: %s\n\n", file->full_path, location.row, message);
+				if (ansi)
+				{
+					eprintf("(%s:%d) \x1b[33;1mWarning\x1b[0m: %s\n\n", file->full_path, location.row, message);
+				}
+				else 
+				{
+					eprintf("(%s:%d) Warning: %s\n\n", file->full_path, location.row, message);
+				}
 				break;
 			default:
 				UNREACHABLE