1 files changed, 9 insertions, 0 deletions
diff --git a/src/redshift.h b/src/redshift.h
index e8be4e6..5f4335c 100644
--- a/src/redshift.h
+++ b/src/redshift.h
@@ -24,6 +24,15 @@
 #include <stdlib.h>
 
 
+/* Periods of day. */
+typedef enum {
+	PERIOD_NONE = 0,
+	PERIOD_DAYTIME,
+	PERIOD_NIGHT,
+	PERIOD_TRANSITION
+} period_t;
+
+
 /* Color setting */
 typedef struct {
 	int temperature;