Yes. Infact, the english spec (rather than the DTD) states that text colors
*MAY* need to be adjusted, but earlier on it says that background is only
for the benefit of clients that do not support style sheets.
I.e. Style sheets are the right way.
Netscape color extensions (like many other netscape extensions) are hot air
and presumptiously defined.
Unfortunately, style sheets are still being defined :)
For everybodies entertainment, I include the background definition text:
BACKGROUND This can be used to specify a URI for an image tile to cover the
document background. This provides a way of giving a group of documents
a distinctive appearance. Clients may ignore this attribute. It is
included here for the benefits of clients that don't support style sheets.
Note that the text color may need to be adjusted to show an adequate
contrast with the background.