On Thu, Oct 18, 2018 at 02:32 AM, Brian's Mail list account wrote:

Yes which is why I'd want to know, not by a stupid colour but by a minus sign.

How nice for you.  That doesn't change one of the common conventions that has been used for a very, very long time.  The problem here lies not with the use of color.
 
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Brian - Windows 10 Home, 64-Bit, Version 1809, Build 17763  

The terrible state of public education has paid huge dividends in ignorance.  Huge.  We now have a country that can be told blatant lies — easily checkable, blatant lies — and I’m not talking about the covert workings of the CIA. When we have a terrorist attack, on September 11, 2001 with 19 men — 15 of them are Saudis — and five minutes later the whole country thinks they’re from Iraq — how can you have faith in the public? This is an easily checkable fact. The whole country is like the O.J. Simpson jurors.

      ~ Fran Lebowitz in Ruminator Magazine interview with Susannah McNeely (Aug/Sept 2005)