On Tue, 24 Feb 2009, Roger Hui wrote:
> What does w3m mean?

w3m brower. Should be short form  of "www mi" where mi=see in japanese.

> What does ff3 mean?

firefox version 3
 
> What is the importance of inverted background
> if white background works?  Figure 3 is supposed
> to be displayed with a white background.

Just a user preference to prevent/lessen presbyopia from watching
dark-on-white.

o Light causes the iris to close (that's the reason for sunglasses) and
  for long time, that muscles can stop working well and the retina start
  receiving much more light than it should. Needless to say retina can
  burn.

o For people with presbyopia and similar, It's easier to read on white
  backgrounds mainly because the "iris" closes for the light and that
  fact makes the blur disappear. Similar to the cameras.


-- 
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