Font ligatures [0.12.1]

I don’t get any glyphs, just plain symbols. I’m doing something wrong or there are no support for ligatures?

use iced::widget::text::Shaping;
use iced::widget::{container, text, Text};
use iced::{alignment, executor, font, Application, Command, Element, Length, Settings, Theme};

pub fn main() -> iced::Result {
    Editor::run(Settings::default())
}

enum Editor {
    Loading,
    Loaded(State),
}

#[derive(Clone, Debug)]
enum Message {
    #[allow(dead_code)]
    Loaded(Result<(), String>),
    FontLoaded(Result<(), font::Error>),
}

async fn load() -> Result<(), String> {
    Ok(())
}

#[derive(Debug)]
struct State {
    #[allow(dead_code)]
    number: i32,
}

impl Application for Editor {
    type Message = Message;
    type Theme = Theme;
    type Executor = executor::Default;
    type Flags = ();

    // include_bytes!("FiraCode-Regular.ttf")
    fn new(_flags: ()) -> (Editor, Command<Message>) {
        (
            Editor::Loading,
            Command::batch(vec![
                font::load(include_bytes!("FiraCode-Regular.ttf")).map(Message::FontLoaded),
                Command::perform(load(), Message::Loaded),
            ]),
        )
    }

    fn title(&self) -> String {
        String::from("QGen Next")
    }

    fn update(&mut self, message: Message) -> Command<Message> {
        match self {
            Editor::Loading => {
                if let Message::Loaded(_) = message {
                    *self = Editor::Loaded(State { number: 1 })
                }
            }
            Editor::Loaded(_state) => match message {
                _ => {}
            },
        }
        Command::none()
    }

    fn view(&self) -> Element<Message> {
        match self {
            Editor::Loading => container(
                text("Loading...")
                    .horizontal_alignment(alignment::Horizontal::Center)
                    .size(50),
            )
            .width(Length::Fill)
            .height(Length::Fill)
            .center_y()
            .center_x()
            .into(),

            Editor::Loaded(state) => {
                println!("{:?}", state);
                Text::new("Hello -> => == === <=> >= <=")
                    .shaping(Shaping::Advanced)
                    .size(30)
                    .into()
            }
        }
    }
}