gROOT->SetStyle("Modern");It has very little decoration. It was made looking at the default styles usually used by the experiments.
A new parameter Canvas.Style in config/rootrc.in allows to define the default style. If it is not specified, the Modern style is used. To use the old default style on can set it to Classic.
The following table shows the two plots hpx->Draw() and hpxpy->Draw("colz") in the "Classic" and "Modern" styles.
Classic Style | Modern Style |
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An other example:
Classic style:
Modern style: