s1
reference for color usage (which section is which “stronger accent,” etc): http://goathack.livejournal.org:8055/docs/usageguide.html
color codes for hex: http://goathack.livejournal.org:8055/docs/color_codes.html
background image: http://www.livejournal.com/users/howto/8885.html
background image faq: http://www.livejournal.com/support/faqbrowse.bml?faqid=97
s2
s2 manual: http://www.livejournal.com/doc/s2/
to modify: http://www.livejournal.com/customize/ and http://www.livejournal.com/customize/advanced and stuff.