Syncs the items on this layer with the current layer settings.

def sync(self):
        """
        Syncs the items on this layer with the current layer settings.
        """
        layerData = self.layerData()
        for item in self.scene().items():
            try:
                if item._layer == self:
                    item.syncLayerData(layerData)
            except AttributeError:
                continue