Function gtk4_sys::gtk_snapshot_append_outset_shadow

pub unsafe extern "C" fn gtk_snapshot_append_outset_shadow(
    snapshot: *mut GtkSnapshot, 
    outline: *const GskRoundedRect, 
    color: *const GdkRGBA, 
    dx: c_float, 
    dy: c_float, 
    spread: c_float, 
    blur_radius: c_float
)