🕐 Unlock requirement: Send at least 5 letters between 1:00 AM and 4:00 AM local time (could be adjusted depending on what fits best).

🎨 Design idea:

A cute or wise owl, sitting on an envelope or a branch. A dark sky with stars or a crescent moon in the background. Calm, cozy nighttime colors (navy blue, purple, soft yellow highlights).

This would be a fun and encouraging way to recognize those of us who are night owls by nature or circumstance. It’s also a small way to celebrate the personal habits and rhythms of Slowly users around the world.