- Load ics calendars from google or other sources
- Show different colors for each calendar
- Summarize weekly the event for a whole year (like for cleaning plan,..)
- Working example: http://rokdd.de/platform/jahreskalender/index.php
- at the end of the month are never entrys
- entrys should be entered from whole week: Monday til Sunday
- Replace the table with css-flex
- Use as parser: https://github.com/u01jmg3/ics-parser