[ROOT] "col" or "colz" in 2D histogram in 4.00.02

From: Woon-Seng Choong (wschoong@lbl.gov)
Date: Tue Mar 02 2004 - 22:38:00 MET

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   Olivier just helped me to define more grayscale color. But when I 
draw an image using 2D-histogram using the "col" or colz" option, bin 
with zero content shows up as white (white being low count and black 
being high count).  It looks correct with "surf/color" draw option.  Is 
this a bug?

	Seng

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