public override void _Ready()
{
InitVignette();
var btHolder = new HBoxContainer();
btHolder.MarginTop = btHolder.MarginLeft = 20;
btHolder.AddConstantOverride("separation", 20);
AddChild(btHolder);
colorBt.Connect("color_changed", this, nameof(OnNewColorPicked));
colorBt.Color = flashColor;
colorBt.RectMinSize = new Vector2(100, 20);
btHolder.AddChild(colorBt);
var rateSlider = new HSlider();
rateSlider.RectMinSize = new Vector2(200, 20);
rateSlider.MaxValue = 70;
rateSlider.Value = rate;
rateSlider.Connect("value_changed", this, nameof(OnNewRatePicked));
btHolder.AddChild(rateSlider);
}