

The General Settings screen (closed day label/colors, weekly closed days, holiday display, etc.)
Gorogoro Calendar makes it easy to set up your regular closed days.
Prepare your public holiday data as a CSV file (UTF-8) with the date in the first column and the holiday name in the second column, then import it from the plugin’s settings page. Japan’s official “National Holidays” CSV, published every year on the Cabinet Office website, is supported directly:
https://www8.cao.go.jp/chosei/shukujitsu/gaiyou.html