Calendar

Main menu key: a

Header shows year/month (2x, not the app name). No tip bar on the main view; shortcuts are under h Help (same year/month header).

Screenshots

Shortcuts

Key	Action
, . or arrows	Previous / next month
- =	Previous / next year
t	Jump to today's month
h	Help (press again to close)

Usage

1. Opens on the current month from the system clock (or RTC). If the clock is unset, a default month is shown and you can still browse.
2. Set the first day of the week to Sunday or Monday in the Options calendar module (calendar.week_start). Weekends are orange; today is yellow.
3. When the clock is unset, a clock unset hint appears at the bottom-left.