public KryptonRibbonGroupClusterButton()
{
// Default fields
_enabled = true;
_visible = true;
_checked = false;
_textLine = string.Empty;
_keyTip = "B";
_shortcutKeys = Keys.None;
_itemSizeMax = GroupItemSize.Medium;
_itemSizeMin = GroupItemSize.Small;
_itemSizeCurrent = GroupItemSize.Medium;
_imageSmall = _defaultButtonImageSmall;
_buttonType = GroupButtonType.Push;
_contextMenuStrip = null;
_kryptonContextMenu = null;
_toolTipImageTransparentColor = Color.Empty;
_toolTipTitle = string.Empty;
_toolTipBody = string.Empty;
_toolTipStyle = LabelStyle.SuperTip;
}