In calendar view, seems the end date is currently interpreted as “until the end date” so when drawing color lines, the Enddate day is not covered. Is this made intentionally or? If yes, it might be a good idea to add a switch into calendar view settings, to include/exclude the Enddate in the date range. If I add endtime, like 23:59, then it covers, but do not prefer to add another unnecessary column, or
+1 to Enddate to display it correctly.