elif colNum == srcMacColumn or colNum == destMacColumn:
cols = [int(x, 16) for x in data.split(':')]
item.setBackground(QtGui.QColor(255-cols[2]*cols[3] % 192, 255-cols[3]*cols[4] % 192, 255-cols[4]*cols[5] % 192))
elif colNum == srcMacColumn or colNum == destMacColumn:
cols = [int(x, 16) for x in data.split(':')]
item.setBackground(QtGui.QColor(255-cols[2]*cols[3] % 192, 255-cols[3]*cols[4] % 192, 255-cols[4]*cols[5] % 192))