# this goes in your ~/.gtkrc-2.0 file

style "vimfix" {
  bg[NORMAL] = "#242424" # this matches my gvim theme 'Normal' bg color.
}
widget "vim-main-window.*GtkForm" style "vimfix"

# taken from a very helpful post here: https://bbs.archlinux.org/viewtopic.php?id=65285