Margin adjustments in Calendar view around Show and Search
IMO the current implementation looks off / unbalanced. My expectation is to see a bit of margin between the label and widget and less left margin inside the drop down widget. Depending on the margins added, more margin may make sense between the Show and Search sections to visually separate them.
Additionally, on wide screen monitors, the Search TextField widget grows too large horizontally. It should have a max width. Otherwise the mouse travel to get to the left / right buttons is excessive.