Index: firmware/App/Modes/ModeFill.h
===================================================================
diff -u -r2b6abbe347b2da260a4d46aca233bbfb6a59bf04 -rba0b07893eccc26bda5d46281980c2e8cb499997
--- firmware/App/Modes/ModeFill.h	(.../ModeFill.h)	(revision 2b6abbe347b2da260a4d46aca233bbfb6a59bf04)
+++ firmware/App/Modes/ModeFill.h	(.../ModeFill.h)	(revision ba0b07893eccc26bda5d46281980c2e8cb499997)
@@ -8,7 +8,7 @@
 * @file    ModeFill.h
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      21-Jun-2022
+* @date    (last)      07-Nov-2022
 *
 * @author  (original)  Leonardo Baloa
 * @date    (original)  19-Nov-2019
@@ -31,11 +31,12 @@
 
 // ********** public definitions **********
 
+/// Chemical bottles
 typedef enum
 {
-    ACID = 0,
-    BICARB,
-    NUM_OF_CHEMICALS,
+    ACID = 0,                                   ///< Acid.
+    BICARB,                                     ///< Bicarb.
+    NUM_OF_CHEMICALS,                           ///< Number of chemicals.
 } CHEMICAL_BOTTLES_T;
 
 /// DG broadcast dialysate fill data structure.