Style transparent (not opaque) events

Fixes #3192

UI/Scheduler/NSArray+Scheduler.h

@@ -27,24 +27,25 @@
 #define eventFolderIndex            1
 #define eventCalendarNameIndex      2
 #define eventStatusIndex            3
-#define eventTitleIndex             4
-#define eventStartDateIndex         5
-#define eventEndDateIndex           6
-#define eventLocationIndex          7
-#define eventIsAllDayIndex          8
-#define eventClassificationIndex    9
-#define eventCategoryIndex         10
-#define eventPriorityIndex         11
-#define eventPartMailsIndex        12
-#define eventPartStatesIndex       13
-#define eventOwnerIndex            14
-#define eventIsCycleIndex          15
-#define eventNextAlarmIndex        16
-#define eventRecurrenceIdIndex     17
-#define eventIsExceptionIndex      18
-#define eventEditableIndex         19
-#define eventErasableIndex         20
-#define eventOwnerIsOrganizerIndex 21
+#define eventIsOpaqueIndex          4
+#define eventTitleIndex             5
+#define eventStartDateIndex         6
+#define eventEndDateIndex           7
+#define eventLocationIndex          8
+#define eventIsAllDayIndex          9
+#define eventClassificationIndex   10
+#define eventCategoryIndex         11
+#define eventPriorityIndex         12
+#define eventPartMailsIndex        13
+#define eventPartStatesIndex       14
+#define eventOwnerIndex            15
+#define eventIsCycleIndex          16
+#define eventNextAlarmIndex        17
+#define eventRecurrenceIdIndex     18
+#define eventIsExceptionIndex      19
+#define eventEditableIndex         20
+#define eventErasableIndex         21
+#define eventOwnerIsOrganizerIndex 22
 
 // See [UIxCalListingActions initialize]
 #define taskNameIndex               0