diff --git a/autoload/SpaceVim.vim b/autoload/SpaceVim.vim
index 59f3a3abe..65763c65c 100644
--- a/autoload/SpaceVim.vim
+++ b/autoload/SpaceVim.vim
@@ -2,7 +2,7 @@
 " @section Introduction, intro
 " @stylized Maktaba
 " @library
-" @order intro version dicts functions exceptions layers layer-lang-php layer-lang-c
+" @order intro version dicts functions exceptions layers colorscheme layer_lang_java layer_lang_php layer_lang_c
 "   SpaceVim is a Modular configuration, a bundle of custom settings
 " and plugins, for Vim. It got inspired by spacemacs.
 
diff --git a/autoload/SpaceVim/layers/colorscheme.vim b/autoload/SpaceVim/layers/colorscheme.vim
index 315d2bc3b..5c29fc62a 100644
--- a/autoload/SpaceVim/layers/colorscheme.vim
+++ b/autoload/SpaceVim/layers/colorscheme.vim
@@ -1,3 +1,13 @@
+""
+" @section Colorscheme, colorscheme
+" gruvbox : this is SpaceVim default colorscheme. SpaceVim also support there
+" colorschemes:
+" >
+"   hybrid-material
+"   solarized
+" <
+
+
 function! SpaceVim#layers#colorscheme#plugins() abort
     return [
                 \ ['morhetz/gruvbox', {'loadconf' : 1}],
diff --git a/autoload/SpaceVim/layers/lang/c.vim b/autoload/SpaceVim/layers/lang/c.vim
index 7516781eb..8f22129fa 100644
--- a/autoload/SpaceVim/layers/lang/c.vim
+++ b/autoload/SpaceVim/layers/lang/c.vim
@@ -1,5 +1,5 @@
 ""
-" @section Layer-lang-c
+" @section Layer_lang_c
 " lang#c :
 "
 "      this layer provide c family language code completion.
diff --git a/autoload/SpaceVim/layers/lang/java.vim b/autoload/SpaceVim/layers/lang/java.vim
index 9ef31de8e..6202f018f 100644
--- a/autoload/SpaceVim/layers/lang/java.vim
+++ b/autoload/SpaceVim/layers/lang/java.vim
@@ -1,3 +1,40 @@
+""
+" @section Layer_lang_java, layer_lang_java
+" This layer is for java development. 
+" >
+"   import-mappings:
+"   mode      key           function
+"   normal    <F4>          import class under corsor.
+"   insert    <F4>          import class under corsor.
+"   normal    <leader>jI    import missing classes.
+"   normal    <leader>jR    remove unused imports.
+"   normal    <leader>ji    smart import class under corsor.
+"   normal    <leader>jii   same as <F4>
+"   insert    <c-j>I        import missing imports.
+"   insert    <c-j>R        remove unused imports.
+"   insert    <c-j>i        smart import class under corsor.
+"   insert    <c-j>ii       add import for class under corsor.
+"
+"   generate-mappings:
+"   mode      key           function
+"   normal    <leader>jA    generate accessors.
+"   normal    <leader>js    generate setter accessor.
+"   normal    <leader>jg    generate getter accessor.
+"   normal    <leader>ja    generate setter and getter accessor.
+"   normal    <leader>jts   generate toString function.
+"   normal    <leader>jeq   generate equals and hashcode function.
+"   normal    <leader>jc    generate constructor.
+"   normal    <leader>jcc   generate default constructor.
+"   insert    <c-j>s        generate setter accessor.
+"   insert    <c-j>g        generate getter accessor.
+"   insert    <c-j>a        generate getter and setter accessor.
+"   visual    <leader>js    generate setter accessor.
+"   visual    <leader>jg    generate getter accessor.
+"   visual    <leader>ja    generate setter and getter acctssor.
+" <
+"
+
+
 function! SpaceVim#layers#lang#java#plugins() abort
     let plugins = [
                 \ ['wsdjeg/vim-dict',                        { 'on_ft' : 'java'}],
diff --git a/autoload/SpaceVim/layers/lang/php.vim b/autoload/SpaceVim/layers/lang/php.vim
index 225778eb8..b2df96d22 100644
--- a/autoload/SpaceVim/layers/lang/php.vim
+++ b/autoload/SpaceVim/layers/lang/php.vim
@@ -1,5 +1,5 @@
 ""
-" @section Layer-lang-php
+" @section Layer_lang_php
 " lang#php :
 " 
 "   this layer is for php development, and it provide auto codo completion, 
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index 66014705c..ab8564d80 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -7,8 +7,10 @@ CONTENTS                                                   *SpaceVim-contents*
   2. Configuration...........................................|SpaceVim-config|
   3. Functions............................................|SpaceVim-functions|
   4. Layers..................................................|SpaceVim-layers|
-  5. Layer-lang-php..................................|SpaceVim-layer-lang-php|
-  6. Layer-lang-c......................................|SpaceVim-layer-lang-c|
+  5. Colorscheme........................................|SpaceVim-colorscheme|
+  6. Layer_lang_java................................|SpaceVim-layer_lang_java|
+  7. Layer_lang_php..................................|SpaceVim-layer_lang_php|
+  8. Layer_lang_c......................................|SpaceVim-layer_lang_c|
 
 ==============================================================================
 INTRODUCTION                                                  *SpaceVim-intro*
@@ -222,7 +224,54 @@ LAYERS                                                       *SpaceVim-layers*
   SpaceVim support such layers:
 
 ==============================================================================
-LAYER-LANG-PHP                                       *SpaceVim-layer-lang-php*
+COLORSCHEME                                             *SpaceVim-colorscheme*
+
+gruvbox : this is SpaceVim default colorscheme. SpaceVim also support there
+colorschemes:
+>
+  hybrid-material
+  solarized
+<
+
+==============================================================================
+LAYER_LANG_JAVA                                     *SpaceVim-layer_lang_java*
+
+This layer is for java development.
+>
+  import-mappings:
+  mode      key           function
+  normal    <F4>          import class under corsor.
+  insert    <F4>          import class under corsor.
+  normal    <leader>jI    import missing classes.
+  normal    <leader>jR    remove unused imports.
+  normal    <leader>ji    smart import class under corsor.
+  normal    <leader>jii   same as <F4>
+  insert    <c-j>I        import missing imports.
+  insert    <c-j>R        remove unused imports.
+  insert    <c-j>i        smart import class under corsor.
+  insert    <c-j>ii       add import for class under corsor.
+
+  generate-mappings:
+  mode      key           function
+  normal    <leader>jA    generate accessors.
+  normal    <leader>js    generate setter accessor.
+  normal    <leader>jg    generate getter accessor.
+  normal    <leader>ja    generate setter and getter accessor.
+  normal    <leader>jts   generate toString function.
+  normal    <leader>jeq   generate equals and hashcode function.
+  normal    <leader>jc    generate constructor.
+  normal    <leader>jcc   generate default constructor.
+  insert    <c-j>s        generate setter accessor.
+  insert    <c-j>g        generate getter accessor.
+  insert    <c-j>a        generate getter and setter accessor.
+  visual    <leader>js    generate setter accessor.
+  visual    <leader>jg    generate getter accessor.
+  visual    <leader>ja    generate setter and getter acctssor.
+<
+
+
+==============================================================================
+LAYER_LANG_PHP                                       *SpaceVim-layer_lang_php*
 
 lang#php :
 
@@ -241,7 +290,7 @@ syntax check, and jump to the definition location.
 
 
 ==============================================================================
-LAYER-LANG-C                                           *SpaceVim-layer-lang-c*
+LAYER_LANG_C                                           *SpaceVim-layer_lang_c*
 
 lang#c :