Although this entry is marked as "Approved", I don't see any change (220.127.116.11). So, if I understand correctly, the problem addressed in this thread is that in the "Calendar" view it is not obvious at a glance where the new/old month starts/ends (?).
In the "Calendar" view, I would suggest clearer transitions between months. The font indicating the beginning of a new month is very small. While I can see the month and year in the header, it is not always clear to quickly distinguish which part of the displayed calendar it refers to. I would suggest either a vertical line with adjustable color and thickness, or the ability to adjust the font size of the font (indicating the beginning of the month) and possibly change its background color. Possibly both. With either of these solutions, though, I always have to find the beginning (or end) of the month to know what month I'm in. I would leave the solution to the developer, but the current implementation is very impractical and detracts from the work.