Sky

The background is the sky at the station, right now. It moves with the sun and, on a station's screen, with the weather.

Every screen sits on a four-colour gradient. The top two colours carry the time of day and the weather; the bottom two are always dark, which is what lets white text work at every hour and why the app is dark only.

Time of day

Four skies, dawn, day, dusk and night, placed around the station's own sunrise and sunset. Any moment is a blend of two, so the sky moves continuously: drag the curve slowly across sunrise and the screen walks from night through dawn into day. Dawn and dusk hold for an hour each, longer than real twilight, because they are the best skies in the set.

On the list, each card is its own station's time, and the screen behind them is yours.

Weather

On a station's screen, the weather picks one of four rows: clear, cloudy, rain or snow. The time of day blends within the row. When there's no forecast for the moment on screen, the sky is clear: that's the app's look anywhere it has no weather, not a claim of sunshine. The list and the widget are always clear, because they don't fetch weather.

dawn

day

dusk

night

clear

#3c3f7a
#8c5a7e

#2b7ab0
#3f8dbe

#3b2f63
#8a4a63

#0e1b33
#14264a

cloudy

#4a4a63
#7d6a72

#5b7086
#6e8298

#3f3a55
#6b5568

#151c2b
#1f2838

rain

#3d4457
#5c6270

#46586e
#566a80

#333a4e
#4d4f63

#10141f
#182031

snow

#7d7d98
#938193

#6f8194
#7489a0

#6d7396
#8a7f9e

#2a3348
#3a465e

Each sky shows its top two stops. Snow is the one row whose bottom stops are lighter.

Effects

Over the sky and under the tide, the weather moves. The water under the curve covers it, so it only shows in the sky.

Thunderstorm at night — Storm, with lightning

Stars on a clear night — Stars, on a clear night

Effect	When	Look
Rain	Drizzle to hurricanes, three strengths	Thin streaks, leaning with the wind
Lightning	Thunderstorms and strong storms	A dim double flash about every 13 seconds
Snow	Flurries to blizzards, sleet, hail	Drifting, swaying flakes, pushed by the wind
Fog	Fog, haze, smoke, blowing dust	Three soft bands drifting across the upper sky
Stars	A clear night	Mostly steady, three in ten twinkling, coming out through dusk

With Reduce Motion or Low Power Mode on, nothing moves: stars and fog are drawn still, and rain, snow and lightning are left off, because a frozen raindrop looks like a scratch on the screen. Lightning stays well under the flash limit in the accessibility guidelines.

The icon

The same four skies, with the app's own tide curve and the bead where the water is.