Using simplified Chinese fonts, the Chinese characters are not clear after running

[guobbs]

When I use Simplified Chinese in my UI, the text always displays correctly and clearly in the Slint Live Preview tool. However, when I compile and run the application standalone, the UI displays blurry text.
Does anyone know how to fix this?

Below is my slint source code

import { Button, StandardListView, ListView, GridBox, CheckBox, Slider, HorizontalBox, TextEdit, Switch, ComboBox, LineEdit, StandardTableView, StandardButton } from "std-widgets.slint";

export component SettingDialog inherits Dialog {
    title: "参数设置";
    Text {
        text: "这里是设置窗口";
    }
    StandardButton {
        kind: ok;
    }
    StandardButton {
        kind: cancel;
    }
}


export component MainWindows inherits Window {
    job: "00012a";
    step: "orig";
    title: "测试窗口";
    // default-font-family: "Microsoft YaHei UI";
    default-font-family: "宋体";
    default-font-size: 18px;
    // default-font-weight: 700;
    // background: #b0a5bb;
    // 定义一个变量
    in-out property <string> job;
    in-out property <string> step;
    callback show-settings();
    VerticalLayout {
        Rectangle {
            // background: #bda466;
            HorizontalLayout {
                padding: 9px;
                max-height: 60px;
                spacing: 5px;
                HorizontalBox {
                    horizontal-stretch: 0.3;
                    Text {
                        horizontal-alignment: right;
                        text: "当前JOB:";
                    }

                    Text {
                        horizontal-alignment: left;
                        text: job;
                    }
                }

                HorizontalBox {
                    horizontal-stretch: 0.7;
                    Text {
                        horizontal-alignment: right;
                        text: "当前STEP:";
                    }

                    Text {
                        horizontal-alignment: left;
                        text: step;
                    }
                }
            }
        }

        TextInput {
            text: "请输入你想输入的内容";
        }

        ComboBox {
            accessible-role: AccessibleRole.list;
            current-index: 4;
            model: ["first", "second", "third", "第四", "第五"];
            x: 0cm;
        }

        Slider {
            minimum: 0;
            orientation: Orientation.horizontal;
            preferred-width: 0cm;
            value: 30;
            visible: true;
            x: 0cm;
            accessible-role: AccessibleRole.checkbox;
            enabled: true;
            maximum: 100;
        }

        CheckBox {
            text: "复选框";
        }

        Switch {
            text: "空调开关";
        }

        Button {
            text: "打开设置窗口";
            clicked => {
                root.show-settings();
            }
        }
    }
}

Rust code:

// 非控制台程序入口
#![windows_subsystem = "windows"]

use slint::PhysicalPosition;

slint::include_modules!();

fn main() {
    // 这里是 GUI 程序的入口
    let ui = MainWindows::new().unwrap();
    ui.on_show_settings(|| {
        let dialog = SettingDialog::new().unwrap();
        {
            let win = dialog.window();
            let pos = PhysicalPosition { x: 500, y: 300 };
            win.set_position(pos);
            let size = slint::PhysicalSize { width: 400, height: 200 };
            win.set_size(size);
        }
        
        dialog.show().unwrap();
    });
    {
        let u = ui.as_weak();
        let u = u.unwrap();
        u.set_job(slint::format!("00012a"));
        ui.set_step(slint::format!("edit"));
    }
    let _ = ui.run();
}

Cargo.toml

[package]
name = "slint-demo"
version = "0.1.0"
edition = "2024"

[build-dependencies]
slint-build = "1.13.1"

[dependencies]
slint = "1.13.1"