fn font(&self) -> Option<(String, f32)> {
        // Not having any title isn't something desirable for the users, so setting it to
        // something generic.
        Some((String::from("sans-serif"), 17.))
    }
/// Font name and the size for the title bar.
///
/// By default the font is `sans-serif` at the size of 17.
///
/// Returning `None` means that title won't be drawn.
Font name and the size for the title bar.
By default the font is `sans-serif` at the size of 17.

Returning `None` means that title won't be drawn.
Font name and the size for the title bar . By default the font is ` sans - serif ` at the size of 17 . Returning ` None ` means that title won ' t be drawn .
fn font(&self) -> Option<(String, f32)> {
        // Not having any title isn't something desirable for the users, so setting it to
        // something generic.
        Some((String::from("sans-serif"), 17.))
    }
fn font ( & self ) -> Option < ( String , f32 ) > { // Not having any title isn't something desirable for the users, so setting it to // something generic. Some ( ( String :: from ( " " ) , 17. ) ) }
Font name and the size for the title bar.
Font name and the size for the title bar .
&self
&self