Function egui::widgets::reset_button_with

pub fn reset_button_with<T: PartialEq>(
    ui: &mut Ui,
    value: &mut T,
    text: &str,
    reset_value: T,
)

Show a button to reset a value to its default. The button is only enabled if the value does not already have its original value.

The text could be something like “Reset foo”.