How does an ink calendar work?

I think it's quite convenient to use, especially the calendar function is particularly clear. There is a special lunar date highlighted in the calendar. And click this lunar date, you can also enter the Gregorian calendar interface. If you have research on almanac, or like it better, it will be easier to use. Some small white characters can be explained in vernacular Chinese, which is easier to understand. Overall, it feels good to use.