# first, delete existing windows to save memory:
deleteAllWindows(CytoscapeConnection())
cw <- CytoscapeWindow ('setDefaultNodeLabelColor.test', graph=makeSimpleGraph())
displayGraph (cw)
layoutNetwork (cw, 'force-directed')
setDefaultNodeLabelColor (cw, '#FFFFFF') # white node labels
# redraw (cw) --> not required anymore
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