diff --git a/autoload/indent_guides.vim b/autoload/indent_guides.vim
index 366e3f9..1c68a7c 100644
--- a/autoload/indent_guides.vim
+++ b/autoload/indent_guides.vim
@@ -106,13 +106,13 @@ endfunction
 " colorscheme is being used.
 "
 function! indent_guides#lighten_or_darken_color(color)
-    let percent = g:indent_guides_auto_colors_change_percent
+  let percent = g:indent_guides_color_change_percent
 
-    let new_color = (&g:background == 'dark') ?
-      \ color_helper#hex_color_lighten(a:color, percent) :
-      \ color_helper#hex_color_darken (a:color, percent)
+  let new_color = (&g:background == 'dark') ?
+    \ color_helper#hex_color_lighten(a:color, percent) :
+    \ color_helper#hex_color_darken (a:color, percent)
 
-    return new_color
+  return new_color
 endfunction
 
 "
diff --git a/doc/indent_guides.txt b/doc/indent_guides.txt
index 4d4b531..1d88b53 100644
--- a/doc/indent_guides.txt
+++ b/doc/indent_guides.txt
@@ -56,12 +56,12 @@ Default: 1. Values: 0 or 1.
   let g:indent_guides_auto_colors = 1
 <
 
-                                    *'indent_guides_auto_colors_change_percent'*
+                                          *'indent_guides_color_change_percent'*
 Use this option to control the percent at which the highlight colors will be
 lightened or darkened.
-Default: 0.20. Values: between 0 and 1.
+Default: 0.05. Values: between 0 and 1.
 >
-  let g:indent_guides_auto_colors_change_percent = 0.20
+  let g:indent_guides_color_change_percent = 0.05
 <
 
 ==============================================================================
diff --git a/plugin/indent_guides.vim b/plugin/indent_guides.vim
index f8f454d..b4085b5 100644
--- a/plugin/indent_guides.vim
+++ b/plugin/indent_guides.vim
@@ -27,9 +27,9 @@ let g:indent_guides_auto_colors =
   \ exists('g:indent_guides_auto_colors') ?
   \ g:indent_guides_auto_colors : 1
 
-let g:indent_guides_auto_colors_change_percent =
-  \ exists('g:indent_guides_auto_colors_change_percent') ?
-  \ g:indent_guides_auto_colors_change_percent : 0.20
+let g:indent_guides_color_change_percent =
+  \ exists('g:indent_guides_color_change_percent') ?
+  \ g:indent_guides_color_change_percent : 0.05
 
 let g:indent_guides_debug =
   \ exists('g:indent_guides_debug') ?