Function show_diagram 

fn show_diagram(
    (InMut, In, InMut): (InMut<'_, Ui>, In<Entity>, InMut<'_, DiagramPageCache>),
    displayed_lines: Populated<'_, '_, Ref<'_, DisplayedLine>>,
    vehicles_query: Populated<'_, '_, (Entity, &Name, &VehicleSchedule, &VehicleScheduleCache)>,
    entry_parents: Query<'_, '_, &ChildOf, With<TimetableEntry>>,
    timetable_entries: Query<'_, '_, (&TimetableEntry, &TimetableEntryCache)>,
    station_names: Query<'_, '_, &Name, With<Station>>,
    station_updated: Query<'_, '_, &StationCache, Changed<StationCache>>,
    station_caches: Query<'_, '_, &StationCache, With<Station>>,
    selected_element: ResMut<'_, SelectedElement>,
    timetable_adjustment_writer: MessageWriter<'_, AdjustTimetableEntry>,
    visible_stations_scratch: Local<'_, Vec<(Entity, f32)>>,
)