Thanks, Christian! Besides the ways you mentioned, there is also the "set" command, for example: set bg_color white <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/set.html> Francesco and others may also be interested in the "tips on preparing images" page, which covers background color and other issues: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/print.html#tips> Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Oct 12, 2008, at 8:50 AM, Christian Schudoma wrote:

Hi Francesco, you can change the background colour in Chimera: Actions->Color-

...

background, then Actions->Color->[choose your colour like you would for colouring atoms etc.]. Then just save your image as usual and it should be on a white background.

Also, some of the Publication Options in the Presets menu automatically set the background colour to white.

Maybe there is a command line call for changing the background as well? I don't know... Cheers, Christian ________________________________________ From: chimera-users-bounces@cgl.ucsf.edu [chimera-users-bounces@cgl.ucsf.edu ] On Behalf Of Francesco Pietra [chiendarret@gmail.com] Sent: 12 October 2008 12:44 To: chimera Subject: [Chimera-users] Printing on white background

When mapping protein residues around a ligand I would like to have a printout of the enlarged binding site area, so as to put remarks by pencil on the printout. However, on a white background, in order to save ink. Is that a problem of working out the image (I have Gimp only, of which I never gained expertise), or can Chimera provide directly?

Thanks francesco pietra