Here are the XResource settings to make Netscape look the way mine looks. Just copy the text below and paste it into the bottom of your ~/.Xdefaults file.

! Netscape settings
! These resources control the foreground and background colors of normal text.
!
*defaultForeground:                     Black
*defaultBackground:                     #005577

Netscape*foreground:                    White
Netscape*background:                    #444444

*textBackground:                        #222222

! All but SGI: Set reasonable Text and List colors.
! SGI uses the default IRIX scheme colors.
Netscape*XmTextField.foreground:                White
Netscape*XmText.foreground:             White
Netscape*XmList.foreground:             White
Netscape*XmTextField.background:                #222222
Netscape*XmText.background:             #222222
Netscape*XmList.background:             #222222
! Colors of the outline lists used in mail and news windows.
Netscape*XmLGrid.foreground:            #000000
Netscape*XmLGrid.background:            #C0C0C0
!Netscape*XmLGrid.selectBackground:     #FFFFCC