Bug 72615 [Viewers] Need and ITableFontProvider
We released an ITabelColorProvider for M2 - we should have a corresponding ITableFontProvider
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
* Creates a single item for the given parent and synchronizes it with the
     * given element.
     * 
     * @param parent
     *           the parent widget
     * @param element
     *           the element
     * @param index
     *           if non-negative, indicates the position to insert the item
     *           into its parent
     */
    protected void createTreeItem(Widget parent, Object element, int index) {
        Item item = newItem(parent, SWT.NULL, index);
        updateItem(item, element);
        updatePlus(item, element);
    }
    /**
     * The <code>AbstractTreeViewer</code> implementation of this method also
     * recurses over children of the corresponding element.
     */
    protected void disassociate(Item item) {
        super.disassociate(item);
        
        
        
        if (usingElementMap())
            disassociateChildren(item);
    }
    /**
     * Disassociates the children of the given SWT item from their