Square Diary Maker

This is a dedicated application for writing a "square diary" advocated by Shimpei Takahashi, Japanese famous toy creator. Make a square of the fun things that happened today and tell your friends about it on social media.

v1.1:
- The date and time of the diary can now be changed. You can change the date and time of the diary from the calendar mark at the top of the screen.
- The time of the date can now be hidden. You can hide the time of the date by using the clock mark at the top of the screen.
- Other minor UI fixes.