# first, delete existing windows to save memory:
  deleteAllWindows(CytoscapeConnection())
  cw <- CytoscapeWindow ('setEdgeLabelColorDirect.test', graph=makeSimpleGraph())
  displayGraph (cw)
  layoutNetwork(cw, 'force-directed')
  edge.names <- as.character (cy2.edge.names (cw@graph))
  setEdgeLabelDirect (cw, edge.names, 'some label')
  setEdgeLabelColorDirect (cw, edge.names, '#00FF00')
  setEdgeLabelColorDirect (cw, edge.names [1:2], '#FF0000')
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