Document new API
diff --git a/src/hb-common.h b/src/hb-common.h
index 0858c0e..2532d69 100644
--- a/src/hb-common.h
+++ b/src/hb-common.h
@@ -449,15 +449,43 @@
*
* Data type for holding color values.
*
- * Since: REPLACEME
+ * Since: 2.1.0
*/
typedef uint32_t hb_color_t;
#define HB_COLOR(b,g,r,a) ((hb_color_t) HB_TAG ((b),(g),(r),(a)))
+/**
+ * hb_color_get_alpha:
+ *
+ *
+ *
+ * Since: 2.1.0
+ */
#define hb_color_get_alpha(color) ((color) & 0xFF)
+/**
+ * hb_color_get_red:
+ *
+ *
+ *
+ * Since: 2.1.0
+ */
#define hb_color_get_red(color) (((color) >> 8) & 0xFF)
+/**
+ * hb_color_get_green:
+ *
+ *
+ *
+ * Since: 2.1.0
+ */
#define hb_color_get_green(color) (((color) >> 16) & 0xFF)
+/**
+ * hb_color_get_blue:
+ *
+ *
+ *
+ * Since: 2.1.0
+ */
#define hb_color_get_blue(color) (((color) >> 24) & 0xFF)
