public void SetSizeButtonOn(SizeButtons button)
        {
            Button b = null;

            switch (button)
            {
            case SizeButtons.小号:
                b        = smallBtn;
                fontSize = 2;
                break;

            case SizeButtons.中号:
                b        = middleBtn;
                fontSize = 5;
                break;

            case SizeButtons.大号:
                fontSize = 10;
                b        = bigBtn;
                break;
            }

            b.BackColor = Color.Wheat;

            Button[] buttons =
            {
                smallBtn, middleBtn, bigBtn
            };

            foreach (Button c in buttons)
            {
                if (c != b)
                {
                    c.BackColor = Color.Transparent;
                }
            }
        }
 public SettingPan(SizeButtons size, ColorButtons color)
 {
     InitializeComponent();
     SetSizeButtonOn(size);
     SetColorButtonOn(color);
 }