Waveform Color selection fails to change legend

[pjcross]

When using the 'Waveform Color' button's drop down list to change the waveform color, although both the table and the sparklines update, the legend does not. Only by selecting the waveform color through clicking on a table column header can you change the legend. And since clicking on an already selected column in the table has no effect, you need to pick a different column and then reselect the one you picked using the drop down in order to fix the legend once things are out of synch.