[Sigia-l] On-screen legibility

[Antoni J. Gomez Bosquet]

In order to have good on-screen legibility, it's recommendable that  
there
is sufficient contrast between the background and the text. That is why
the best option is usually a white background and black text.
Nevertheless, at night, or in dark atmospheres, like some Power point
presentations , a dark background screen is recommended with light
coloured text. I read something on this a long time ago, but I do not  
have
the reference now.  Do you know of any references on the subject or  
do you
know the possible reasons for it?

Antoni J.

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Antoni J. Gómez Bosquet
Cercleweb (departament web)
Grupo Usolab, S.L.

Camí de Can Gatxet 55 2n 1a
08190 Sant Cugat del Vallés
Telf. 936 759 936
Fax. 935 836 123
www.cercleweb.com
www.usolab.com