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
}
        
        Item[] items = getChildren(parent);
        for (int i = 0; i < items.length; i++) {
            Item item = items[i];
            Widget o = internalFindItem(item, element);
            if (o != null)
                return o;
        }
        return null;
    }
    
    protected void internalRefresh(Object element) {
        internalRefresh(element, true);
    }
    
    protected void internalRefresh(Object element, boolean updateLabels) {
        
        if (element == null) {
            internalRefresh(getControl(), getRoot(), true, updateLabels);
            return;
        }
        Widget item = findItem(element);
        if (item != null) {
            
            internalRefresh(item, element, true, updateLabels);
        }
    }
    /**
     * Refreshes the tree starting at the given widget.