Some time ago I posted a query about a problem I have been having with agenda: that when I save pdf files using the amazing new facility to just save using (C-u) C-x C-w  and naming the file *.pdf .  Noone else seemed to have the exact same problem, so I trashed almost all of the color and face customizations in my .emacs etc.

The basic problem was that the main text was not visible either in the display or when printed.  When I removed all of the painstaking customizations of color, and don't use color-theme-select, I can get a printable pdf.  The tags and todos faces seem ok, and print in colors that work.  But as soon as I try to mess around with colors again, these pdfs are unworkable again.

My work style involves the use of several emacs frames, often with various projects open in different frames, or for some complicated projects, various parts open in different frames.  I was able to get a kludge working almost perfectly, some years ago, to use a different background color of each newly opened frame.  That's now out the window, so I'd like to explore the reasons I cannot seem to just get a black on white text, for example for the text parts of todos (except TODO keywords and tags.) 

I don't expect much, and I'll keep experimenting.   But perhaps I can ask once again whether anyone has any insight into why this ought to be the case.  It seems persistent.  I have had to get very basic with any colors.  Not that I really need to use a gaudy color scheme, but easy differentiation of frames is crucial. 

Thank you for any ideas. 

Alan