public override async void Execute()
{
RTAnimationCurve rtAnimationCurve = CurveService.GetAnimationCurve();
rtAnimationCurve.ShowCurveEditor();
rtAnimationCurve.NewWindow();
AnimationCurve animationCurve = BrushService.GetBrushWidthCurve();
rtAnimationCurve.Add(ref animationCurve);
rtAnimationCurve.SetGradXRange(0, 1f);
rtAnimationCurve.SetGradYRange(0, 0.5f);
await TaskEx.WaitWhile(CurveService.IsEditorOpen);
BrushService.SetBrushWidthCurve(animationCurve);
}