/// <summary>
/// returns a <see cref="SolidColorBrush"/> of the given <see cref="SolidColorBrush"/> with chosen opacity
/// </summary>
/// <param name="brush"></param>
/// <param name="strength">opacity weight from 0.0 to 1.0 and is set to 0.75 if no value is provided</param>
/// <returns>a given <see cref="SolidColorBrush"/> with chosen opacity</returns>
public static SolidColorBrush OfStrength(this SolidColorBrush brush, double strength = 0.75d)
{
if (strength < 0d || strength > 1.0d)
{
throw new ArgumentOutOfRangeException(nameof(strength), @"strength must be a value between 0.0 and 1.0");
}
return(brush.OfStrength((byte)(strength * 255)));
}
