Sometimes the actual result can be as artistic as the rough draft. Here is the final version of the wavelet figure from the Wavelet Tree in my previous post. The x-axis is still time, showing about a month of data. The y-axis is increasing frequency. You can see there is constant power from a stable star spot, highlighted with the red line. The yellow line shows 1/2 that rotation period, and overtones are visible above that. Small spikes, like blades of neon grass, are due to flares on the star.