
We must delete objects in the list of functions after having cloned
the histogram.
By default set the background histogram to red.
This is useful when using the new TH1::background function
from the context menu.
 ----------------------------------------------------------------------


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@15549 27541ba8-7e3a-0410-8455-c3a389f83636

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