public void EndLayer()
{
int n = 1;
if (layerDepth != null && layerDepth.Count > 0) {
n = layerDepth[layerDepth.Count - 1];
layerDepth.RemoveAt(layerDepth.Count - 1);
} else {
throw new IllegalPdfSyntaxException(MessageLocalization.GetComposedMessage("unbalanced.layer.operators"));
}
while (n-- > 0)
content.Append("EMC").Append_i(separator);
}