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+The colour axis is an object of the type [[http://root.cern.ch/root/html526/TPaletteAxis.html|TPaletteAxis]].
+Here the code i use to format it nicely:
+<code python>
+def ScaleZAxis(histname):
+ 	hist = ROOT.gDirectory.Get(histname)
+ 	ROOT.gPad.Update()
+ 	palette = hist.GetListOfFunctions().FindObject("palette")
+ 	palette.SetX1NDC(0.90)
+ 	palette.SetX2NDC(0.92)
+ 	palette.Draw()
+ 	ROOT.gPad.Update() </code>

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