private async Task ShowButtons()
{
var speed = 25U;
await N.FadeTo(1, speed);
await NW.FadeTo(1, speed);
await SW.FadeTo(1, speed);
await S.FadeTo(1, speed);
}
private async Task HideButtons()
{
var speed = 25U;
await N.FadeTo(0, speed);
await NW.FadeTo(0, speed);
await SW.FadeTo(0, speed);
await S.FadeTo(0, speed);
}