Zapping double Keynote shadows

Usually I blog about grander things than software tricks. Today is an exception with a help-desk-type post. This thing drove me crazy in Keynote: a double drop shadow that just did not want to go away in the data labels of a chart. If I am struggling to find it, there must be a few other people out there getting annoyed by this. Here is a video that explains how to get rid of these ghost shadows. The fonts button at the top right of the screen has some hidden options.