Function number_field 

fn number_field(
    project: Option<RwSignal<Option<EditProject>>>,
    history: Option<StoredValue<Option<History>>>,
    label: &'static str,
    value: u32,
    max: u32,
    set: fn(&mut BackgroundConfig, u32),
) -> AnyView

One labelled numeric field bound to a BackgroundConfig field.