Our plots draw just fine, except in some conditions the x and y axis labels, set with QwtPlot::setAxisTitle(), come out gray instead of black. I can't find anything anywhere in our source that sets colors for these, e.g. something resembling setAxisTitleColor(GRAY) to explain this phenomenon. Why they are black most of the time, I assume is some built-in default of Qwt.
In order to fix our app, it'd be nice to write a line like setAxisTitleColor(BLACK) in the right place to force these labels to always be black. But there doesn't seem to be any such thing defined by Qwt. How to proceed? What does determine the label colors?
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