TThemedTab describes the possible themable parts of a tab.

TThemedTab = (
  ttTabDontCare,
  ttTabRoot,
  ttTabItemNormal,
  ttTabItemHot,
  ttTabItemSelected,
  ttTabItemDisabled,
  ttTabItemFocused,
  ttTabItemLeftEdgeNormal,
  ttTabItemLeftEdgeHot,
  ttTabItemLeftEdgeSelected,
  ttTabItemLeftEdgeDisabled,
  ttTabItemLeftEdgeFocused,
  ttTabItemRightEdgeNormal,
  ttTabItemRightEdgeHot,
  ttTabItemRightEdgeSelected,
  ttTabItemRightEdgeDisabled,
  ttTabItemRightEdgeFocused,
  ttTabItemBothEdgeNormal,
  ttTabItemBothEdgeHot,
  ttTabItemBothEdgeSelected,
  ttTabItemBothEdgeDisabled,
  ttTabItemBothEdgeFocused,
  ttTopTabItemNormal,
  ttTopTabItemHot,
  ttTopTabItemSelected,
  ttTopTabItemDisabled,
  ttTopTabItemFocused,
  ttTopTabItemLeftEdgeNormal,
  ttTopTabItemLeftEdgeHot,
  ttTopTabItemLeftEdgeSelected,
  ttTopTabItemLeftEdgeDisabled,
  ttTopTabItemLeftEdgeFocused,
  ttTopTabItemRightEdgeNormal,
  ttTopTabItemRightEdgeHot,
  ttTopTabItemRightEdgeSelected,
  ttTopTabItemRightEdgeDisabled,
  ttTopTabItemRightEdgeFocused,
  ttTopTabItemBothEdgeNormal,
  ttTopTabItemBothEdgeHot,
  ttTopTabItemBothEdgeSelected,
  ttTopTabItemBothEdgeDisabled,
  ttTopTabItemBothEdgeFocused,
  ttPane,
  ttBody
);

enum TThemedTab {
  ttTabDontCare,
  ttTabRoot,
  ttTabItemNormal,
  ttTabItemHot,
  ttTabItemSelected,
  ttTabItemDisabled,
  ttTabItemFocused,
  ttTabItemLeftEdgeNormal,
  ttTabItemLeftEdgeHot,
  ttTabItemLeftEdgeSelected,
  ttTabItemLeftEdgeDisabled,
  ttTabItemLeftEdgeFocused,
  ttTabItemRightEdgeNormal,
  ttTabItemRightEdgeHot,
  ttTabItemRightEdgeSelected,
  ttTabItemRightEdgeDisabled,
  ttTabItemRightEdgeFocused,
  ttTabItemBothEdgeNormal,
  ttTabItemBothEdgeHot,
  ttTabItemBothEdgeSelected,
  ttTabItemBothEdgeDisabled,
  ttTabItemBothEdgeFocused,
  ttTopTabItemNormal,
  ttTopTabItemHot,
  ttTopTabItemSelected,
  ttTopTabItemDisabled,
  ttTopTabItemFocused,
  ttTopTabItemLeftEdgeNormal,
  ttTopTabItemLeftEdgeHot,
  ttTopTabItemLeftEdgeSelected,
  ttTopTabItemLeftEdgeDisabled,
  ttTopTabItemLeftEdgeFocused,
  ttTopTabItemRightEdgeNormal,
  ttTopTabItemRightEdgeHot,
  ttTopTabItemRightEdgeSelected,
  ttTopTabItemRightEdgeDisabled,
  ttTopTabItemRightEdgeFocused,
  ttTopTabItemBothEdgeNormal,
  ttTopTabItemBothEdgeHot,
  ttTopTabItemBothEdgeSelected,
  ttTopTabItemBothEdgeDisabled,
  ttTopTabItemBothEdgeFocused,
  ttPane,
  ttBody
};