Radar bar
Who's alongside, and how far up they've drawn
What it is for
When you pass, you can see the moment you're fully clear and can move back onto the line — and when they're already at your front wheel and it's too late to close the door.
When nobody's alongside, the widget is out of sight and doesn't distract you from the track.
What you can tune
You can keep the bars on screen all the time: while nobody's alongside, they're gray and empty.
Size, position and when it shows are set the same way for every widget.
Where you change it
Each change takes effect at once — there is no apply button.