use fltk::{prelude::*, *};
use fltk_extras::dial::*;
fn main() {
let a = app::App::default();
app::set_background_color(0, 0, 0);
app::set_foreground_color(255, 255, 255);
app::set_background2_color(128, 128, 128);
let mut w = window::Window::default().with_size(400, 300);
let col = group::Flex::default()
.column()
.with_size(100, 200)
.center_of_parent();
let mut dial = Dial::default();
dial.modifiable(false);
dial.set_value(75);
let mut halfdial = HalfDial::default();
halfdial.set_value(23);
col.end();
w.end();
w.show();
a.run().unwrap();
}