My mood can vary pretty wildly throughout the day, so when I look back at the calendar I end up seeing a wall of yellow because they cancel each other out. It would be really useful to be able to toggle a calendar view that shows a stacked bar of each mood added throughout the day. Maybe even sizing each block respective to the amount of time elapsed before the next mood entry. Then I can see the daily flow of my mood AND differentiate between depressive/numb/neutral days vs. high-emotion/volatile days.

I made a quick edit to show what I mean (under the 3rd):