diff --git a/README.md b/README.md
index 25e0f1c..c15f359 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,8 @@ If you use a plugin manager you can put the whole directory into your `~/.vim/bu
 ## Customization
 You can change the color of indentLines:  
 for Vim, set `g:indentLine_color_term` in your `.vimrc`, e.g. `let g:indentLine_color_term = 239`,  
-for GVim, set `g:indentLine_color_gui` in your `.vimrc`, e.g. `let g:indentLine_color_gui = '#A4E57E'`
-for none X terminal, set `g:indentLine_color_tty` in your `.vimrc`, e.g. `let g:indentLine_color_tty = 2
+for GVim, set `g:indentLine_color_gui` in your `.vimrc`, e.g. `let g:indentLine_color_gui = '#A4E57E'`  
+for none X terminal, set `g:indentLine_color_tty_light` and `g:indentLine_color_tty_dark` in your `.vimrc`. e.g. `let g:indentLine_color_tty_light = 7`(default: 4), `let g:indentLine_color_dark = 1`(default: 2).
 
 You can also change the indentLine char:  
 for both Vim and GVim, set `let g:indentLine_char = 'c'` where `'c'` can be any ASCII character. You can also use one of `¦`, `┆` or `│` to display more beautiful lines. However, these characters will only work with files whose encoding is UTF-8.
diff --git a/after/plugin/indentLine.vim b/after/plugin/indentLine.vim
index b3214c5..f09836b 100644
--- a/after/plugin/indentLine.vim
+++ b/after/plugin/indentLine.vim
@@ -52,19 +52,17 @@ function! s:InitColor()
         let gui_color = g:indentLine_color_gui
     endif
 
-    if ! exists("g:indentLine_color_tty")
-        if &background is# "light"
-            let tty_color = 4
-        else
-            let tty_color = 2
-        endif
-    else
-        let tty_color = g:indentLine_color_tty
-    endif
-
     execute "highlight Conceal ctermfg=" . term_color . " ctermbg=NONE"
     execute "highlight Conceal guifg=" . gui_color .  " guibg=NONE"
-    execute "highlight Conceal cterm=bold ctermfg=" . tty_color .  " ctermbg=NONE"
+
+    if &term is# "linux"
+        if &background is# "light"
+            let tty_color = exists("g:indentLine_color_tty_light") ? g:indentLine_color_tty_light : 4
+        else
+            let tty_color = exists("g:indentLine_color_tty_dark") ? g:indentLine_color_tty_dark : 2
+        endif
+        execute "highlight Conceal cterm=bold ctermfg=" . tty_color .  " ctermbg=NONE"
+    endif
 endfunction
 
 "{{{1 function! s:SetIndentLine()
@@ -165,3 +163,4 @@ command! -nargs=? IndentLinesReset call <SID>ResetWidth(<f-args>)
 command! IndentLinesToggle call <SID>IndentLinesToggle()
 
 " vim:et:ts=4:sw=4:fdm=marker:fmr={{{,}}}
+
diff --git a/doc/indentLine.txt b/doc/indentLine.txt
index 74a8cff..82db783 100644
--- a/doc/indentLine.txt
+++ b/doc/indentLine.txt
@@ -46,9 +46,15 @@ g:indentLine_color_gui                          *g:indentLine_color_gui*
                 Specify GUI vim indent line color.
                 e.g.  let g:indentLine_color_gui = '#A4E57E'
 
-g:indentLine_color_tty                          *g:indentLine_color_tty*
-                Specify none X terminal vim indent line color. (0 - 7)
-                e.g.  let g:indentLine_color_tty = 2
+g:indentLine_color_tty_light                    *g:indentLine_color_tty_light*
+                Specify none X terminal vim indent line color in bg light.
+                default: 4
+                e.g.  let g:indentLine_color_tty_light = 7
+
+g:indentLine_color_tty_dark                     *g:indentLine_color_tty_dark*
+                Specify none X terminal vim indent line color in bg dark.
+                default: 2
+                e.g.  let g:indentLine_color_tty_dark = 1
 
 g:indentLine_indentLevel                        *g:indentLine_indentLevel*
                 Specify how much indent level do you want to use for