zng/tests/macro-tests/cases/widget_new/missing_arg1.rs

use zng::{
    layout::{margin, AngleUnits},
    widget::{background_gradient, Wgt},
    APP,
};

fn main() {
    let _scope = APP.minimal();
    let _ = Wgt! {
        background_gradient = 0.deg(), ;
        margin = 0;
    };
}