Toolkit2/Toolkit.UI.Controls.Avalonia/QrCode/Encoding/Masking/Pattern3.cs

namespace Gma.QrCodeNet.Encoding.Masking;

internal class Pattern3 : Pattern
{
    public override MaskPatternType MaskPatternType => MaskPatternType.Type3;

    public override bool this[int i, int j]
    {
        get => (j + i) % 3 == 0;
        set => throw new NotSupportedException();
    }
}