to show color more comfortable

indentLine.vim

@@ -1,6 +1,6 @@
 " Script Name: indentLine.vim
-" Version:     1.0.0
-" Last Change: Oct 20, 2012
+" Version:     1.0.1
+" Last Change: Dec 3, 2012
 " Author:      Yggdroot <archofortune@gmail.com>
 "
 " Description: To show the indent line
@@ -10,20 +10,22 @@ if !has("conceal") || exists("g:loaded_indentLine")
 endif 
 let g:loaded_indentLine = 1
 
-if (has("gui_running"))
-    hi Conceal      guifg=grey guibg=bg
-else
-    hi Conceal      ctermfg=8 
-endif
-
 set conceallevel=2
 set concealcursor=inc
 
-function! SetIndentLine()
+function! <SID>InitColor()
+    if &bg == 'light'
+        hi Conceal ctermfg=7 ctermbg=NONE guifg=Gray guibg=NONE
+    else
+        hi Conceal ctermfg=8 ctermbg=NONE guifg=DarkGray guibg=NONE
+    endif
+endfunction
+
+function! <SID>SetIndentLine()
     for i in range(&shiftwidth+1, 100, &shiftwidth)
         exe 'syn match IndentLine /\(^\s\+\)\@<=\%'.i.'v / containedin=ALL conceal cchar=|'
     endfor
 endfunction
 
-autocmd BufRead * call SetIndentLine()
-autocmd ColorScheme * hi Conceal  guifg=grey guibg=bg ctermfg=8
+autocmd BufRead * call <SID>SetIndentLine()
+autocmd BufRead,ColorScheme * call <SID>InitColor()