    ;; by your Emacs build.
    ;; If the value is nil then no banner is displayed. (default 'official)
    dotspacemacs-startup-banner 'official
+
    ;; List of items to show in startup buffer or an association list of
    ;; the form `(list-type . list-size)`. If nil then it is disabled.
    ;; Possible values for list-type are:
-   ;; `recents' `bookmarks' `projects' `agenda' `todos'."
+   ;; `recents' `bookmarks' `projects' `agenda' `todos'.
    ;; List sizes may be nil, in which case
    ;; `spacemacs-buffer-startup-lists-length' takes effect.
    dotspacemacs-startup-lists '((recents . 5)
                                 (projects . 7))
-   ;; True if the home buffer should respond to resize events.
+
+   ;; True if the home buffer should respond to resize events. (default t)
    dotspacemacs-startup-buffer-responsive t
+
+   ;; Default major mode for a new empty buffer. Possible values are mode
+   ;; names such as `text-mode'; and `nil' to use Fundamental mode.
+   ;; (default `text-mode')
+   dotspacemacs-new-empty-buffer-major-mode 'text-mode
+
    ;; Default major mode of the scratch buffer (default `text-mode')
    dotspacemacs-scratch-mode 'text-mode
+
+   ;; Initial message in the scratch buffer, such as "Welcome to Spacemacs!"
+   ;; (default nil)
+   dotspacemacs-initial-scratch-message nil
+
    ;; List of themes, the first of the list is loaded when spacemacs starts.
-   ;; Press <SPC> T n to cycle to the next theme in the list (works great
+   ;; Press `SPC T n' to cycle to the next theme in the list (works great
    ;; with 2 themes variants, one dark and one light)
    dotspacemacs-themes '(monokai
                          spacemacs-dark
                          spacemacs-light)
-   ;; If non nil the cursor color matches the state color in GUI Emacs.
+
+   ;; Set the theme for the Spaceline. Supported themes are `spacemacs',
+   ;; `all-the-icons', `custom', `doom', `vim-powerline' and `vanilla'. The
+   ;; first three are spaceline themes. `doom' is the doom-emacs mode-line.
+   ;; `vanilla' is default Emacs mode-line. `custom' is a user defined themes,
+   ;; refer to the DOCUMENTATION.org for more info on how to create your own
+   ;; spaceline theme. Value can be a symbol or list with additional properties.
+   ;; (default '(spacemacs :separator wave :separator-scale 1.5))
+   dotspacemacs-mode-line-theme '(spacemacs :separator wave :separator-scale 1.0)
+
+   ;; If non-nil the cursor color matches the state color in GUI Emacs.
+   ;; (default t)
    dotspacemacs-colorize-cursor-according-to-state t
-   ;; Default font, or prioritized list of fonts. `powerline-scale' allows to
-   ;; quickly tweak the mode-line size to make separators look not too crappy.
+
+   ;; Default font or prioritized list of fonts.
    dotspacemacs-default-font '("Super Monaco"
                                :size 16
                                :weight normal
-                               :width normal
-                               :powerline-scale 1.1)
-   ;; The leader key
+                               :width normal)
+
+   ;; The leader key (default "SPC")
    dotspacemacs-leader-key "SPC"
-   ;; The key used for Emacs commands (M-x) (after pressing on the leader key).
+
+   ;; The key used for Emacs commands `M-x' (after pressing on the leader key).
    ;; (default "SPC")
    dotspacemacs-emacs-command-key "SPC"
+
    ;; The key used for Vim Ex commands (default ":")
    dotspacemacs-ex-command-key ":"
+
    ;; The leader key accessible in `emacs state' and `insert state'
    ;; (default "M-m")
    dotspacemacs-emacs-leader-key "M-m"
+
    ;; Major mode leader key is a shortcut key which is the equivalent of
    ;; pressing `<leader> m`. Set it to `nil` to disable it. (default ",")
    dotspacemacs-major-mode-leader-key ","
+
    ;; Major mode leader key accessible in `emacs state' and `insert state'.
-   ;; (default "C-M-m")
+   ;; (default "C-M-m" for terminal mode, "<M-return>" for GUI mode).
+   ;; Thus M-RET should work as leader key in both GUI and terminal modes.
+   ;; C-M-m also should work in terminal mode, but not in GUI mode.
    dotspacemacs-major-mode-emacs-leader-key nil
+
    ;; These variables control whether separate commands are bound in the GUI to
-   ;; the key pairs C-i, TAB and C-m, RET.
-   ;; Setting it to a non-nil value, allows for separate commands under <C-i>
-   ;; and TAB or <C-m> and RET.
+   ;; the key pairs `C-i', `TAB' and `C-m', `RET'.
+   ;; Setting it to a non-nil value, allows for separate commands under `C-i'
+   ;; and TAB or `C-m' and `RET'.
    ;; In the terminal, these pairs are generally indistinguishable, so this only
    ;; works in the GUI. (default nil)
    dotspacemacs-distinguish-gui-tab nil
-   ;; If non nil `Y' is remapped to `y$' in Evil states. (default nil)
-   dotspacemacs-remap-Y-to-y$ nil
-   ;; If non-nil, the shift mappings `<' and `>' retain visual state if used
-   ;; there. (default t)
-   dotspacemacs-retain-visual-state-on-shift t
-   ;; If non-nil, J and K move lines up and down when in visual mode.
-   ;; (default nil)
-   dotspacemacs-visual-line-move-text nil
-   ;; If non nil, inverse the meaning of `g' in `:substitute' Evil ex-command.
-   ;; (default nil)
-   dotspacemacs-ex-substitute-global nil
+
    ;; Name of the default layout (default "Default")
    dotspacemacs-default-layout-name "Default"
-   ;; If non nil the default layout name is displayed in the mode-line.
+
+   ;; If non-nil the default layout name is displayed in the mode-line.
    ;; (default nil)
    dotspacemacs-display-default-layout nil
-   ;; If non nil then the last auto saved layouts are resume automatically upon
+
+   ;; If non-nil then the last auto saved layouts are resumed automatically upon
    ;; start. (default nil)
    dotspacemacs-auto-resume-layouts nil
+
+   ;; If non-nil, auto-generate layout name when creating new layouts. Only has
+   ;; effect when using the "jump to layout by number" commands. (default nil)
+   dotspacemacs-auto-generate-layout-names nil
+
    ;; Size (in MB) above which spacemacs will prompt to open the large file
    ;; literally to avoid performance issues. Opening a file literally means that
    ;; no major mode or minor modes are active. (default is 1)
    dotspacemacs-large-file-size 1
+
    ;; Location where to auto-save files. Possible values are `original' to
    ;; auto-save the file in-place, `cache' to auto-save the file to another
    ;; file stored in the cache directory and `nil' to disable auto-saving.
    ;; (default 'cache)
    dotspacemacs-auto-save-file-location 'nil
+
    ;; Maximum number of rollback slots to keep in the cache. (default 5)
    dotspacemacs-max-rollback-slots 5
-   ;; If non nil, `helm' will try to minimize the space it uses. (default nil)
-   dotspacemacs-helm-resize nil
-   ;; if non nil, the helm header is hidden when there is only one source.
-   ;; (default nil)
-   dotspacemacs-helm-no-header nil
-   ;; define the position to display `helm', options are `bottom', `top',
-   ;; `left', or `right'. (default 'bottom)
-   dotspacemacs-helm-position 'bottom
-   ;; Controls fuzzy matching in helm. If set to `always', force fuzzy matching
-   ;; in all non-asynchronous sources. If set to `source', preserve individual
-   ;; source settings. Else, disable fuzzy matching in all sources.
-   ;; (default 'always)
-   dotspacemacs-helm-use-fuzzy 'always
-   ;; If non nil the paste micro-state is enabled. When enabled pressing `p`
-   ;; several times cycle between the kill ring content. (default nil)
+
+   ;; If non-nil, the paste transient-state is enabled. While enabled, after you
+   ;; paste something, pressing `C-j' and `C-k' several times cycles through the
+   ;; elements in the `kill-ring'. (default nil)
    dotspacemacs-enable-paste-transient-state nil
+
    ;; Which-key delay in seconds. The which-key buffer is the popup listing
    ;; the commands bound to the current keystroke sequence. (default 0.4)
    dotspacemacs-which-key-delay 0.4
+
    ;; Which-key frame position. Possible values are `right', `bottom' and
    ;; `right-then-bottom'. right-then-bottom tries to display the frame to the
    ;; right; if there is insufficient space it displays it at the bottom.
    ;; (default 'bottom)
    dotspacemacs-which-key-position 'bottom
-   ;; If non nil a progress bar is displayed when spacemacs is loading. This
+
+   ;; Control where `switch-to-buffer' displays the buffer. If nil,
+   ;; `switch-to-buffer' displays the buffer in the current window even if
+   ;; another same-purpose window is available. If non-nil, `switch-to-buffer'
+   ;; displays the buffer in a same-purpose window even if the buffer can be
+   ;; displayed in the current window. (default nil)
+   dotspacemacs-switch-to-buffer-prefers-purpose nil
+
+   ;; If non-nil a progress bar is displayed when spacemacs is loading. This
    ;; may increase the boot time on some systems and emacs builds, set it to
    ;; nil to boost the loading time. (default t)
    dotspacemacs-loading-progress-bar t
-   ;; If non nil the frame is fullscreen when Emacs starts up. (default nil)
+
+   ;; If non-nil the frame is fullscreen when Emacs starts up. (default nil)
    ;; (Emacs 24.4+ only)
    dotspacemacs-fullscreen-at-startup nil
-   ;; If non nil `spacemacs/toggle-fullscreen' will not use native fullscreen.
+
+   ;; If non-nil `spacemacs/toggle-fullscreen' will not use native fullscreen.
    ;; Use to disable fullscreen animations in OSX. (default nil)
    dotspacemacs-fullscreen-use-non-native nil
-   ;; If non nil the frame is maximized when Emacs starts up.
+
+   ;; If non-nil the frame is maximized when Emacs starts up.
    ;; Takes effect only if `dotspacemacs-fullscreen-at-startup' is nil.
    ;; (default nil) (Emacs 24.4+ only)
    dotspacemacs-maximized-at-startup t
+
+   ;; If non-nil the frame is undecorated when Emacs starts up. Combine this
+   ;; variable with `dotspacemacs-maximized-at-startup' in OSX to obtain
+   ;; borderless fullscreen. (default nil)
+   dotspacemacs-undecorated-at-startup nil
+
    ;; A value from the range (0..100), in increasing opacity, which describes
    ;; the transparency level of a frame when it's active or selected.
    ;; Transparency can be toggled through `toggle-transparency'. (default 90)
    dotspacemacs-active-transparency 90
+
    ;; A value from the range (0..100), in increasing opacity, which describes
    ;; the transparency level of a frame when it's inactive or deselected.
    ;; Transparency can be toggled through `toggle-transparency'. (default 90)
    dotspacemacs-inactive-transparency 90
-   ;; If non nil show the titles of transient states. (default t)
+
+   ;; If non-nil show the titles of transient states. (default t)
    dotspacemacs-show-transient-state-title t
-   ;; If non nil show the color guide hint for transient state keys. (default t)
+
+   ;; If non-nil show the color guide hint for transient state keys. (default t)
    dotspacemacs-show-transient-state-color-guide t
-   ;; If non nil unicode symbols are displayed in the mode line. (default t)
+
+   ;; If non-nil unicode symbols are displayed in the mode line.
+   ;; If you use Emacs as a daemon and wants unicode characters only in GUI set
+   ;; the value to quoted `display-graphic-p'. (default t)
    dotspacemacs-mode-line-unicode-symbols t
-   ;; If non nil smooth scrolling (native-scrolling) is enabled. Smooth
+
+   ;; If non-nil smooth scrolling (native-scrolling) is enabled. Smooth
    ;; scrolling overrides the default behavior of Emacs which recenters point
    ;; when it reaches the top or bottom of the screen. (default t)
    dotspacemacs-smooth-scrolling t
+
    ;; Control line numbers activation.
-   ;; If set to `t' or `relative' line numbers are turned on in all `prog-mode'
-   ;; and `text-mode' derivatives. If set to `relative', line numbers are
-   ;; relative.
+   ;; If set to `t', `relative' or `visual' then line numbers are enabled in all
+   ;; `prog-mode' and `text-mode' derivatives. If set to `relative', line
+   ;; numbers are relative. If set to `visual', line numbers are also relative,
+   ;; but lines are only visual lines are counted. For example, folded lines
+   ;; will not be counted and wrapped lines are counted as multiple lines.
    ;; This variable can also be set to a property list for finer control:
    ;; '(:relative nil
+   ;;   :visual nil
    ;;   :disabled-for-modes dired-mode
    ;;                       doc-view-mode
    ;;                       markdown-mode

     syntax-checking
     ;; version-control
     )
   ;; List of additional packages that will be installed without being
   ;; wrapped in a layer. If you need some configuration for these
   ;; packages, then consider creating a layer. You can also put the
   ;; configuration in `dotspacemacs/user-config'.
   dotspacemacs-additional-packages '(xclip)
   ;; A list of packages that cannot be updated.
   dotspacemacs-frozen-packages '()
   ;; A list of packages that will not be installed and loaded.
   dotspacemacs-excluded-packages '(evil-ediff)
   ;; Defines the behaviour of Spacemacs when installing packages.
   ;; Possible values are `used-only', `used-but-keep-unused' and `all'.
   ;; `used-only' installs only explicitly used packages and uninstall any
   ;; unused packages as well as their unused dependencies.
   ;; `used-but-keep-unused' installs only the used packages but won't uninstall
   ;; them if they become unused. `all' installs *all* packages supported by
   ;; Spacemacs and never uninstall them. (default is `used-only')
   dotspacemacs-install-packages 'used-only))

(defun dotspacemacs/init ()
  "Initialization function.
This function is called at the very startup of Spacemacs initialization
before layers configuration.
You should not put any user code in there besides modifying the variable
values."
  ;; This setq-default sexp is an exhaustive list of all the supported
  ;; spacemacs settings.
  (setq-default
   ;; If non nil ELPA repositories are contacted via HTTPS whenever it's
   ;; possible. Set it to nil if you have no way to use HTTPS in your
   ;; environment, otherwise it is strongly recommended to let it set to t.
   ;; This variable has no effect if Emacs is launched with the parameter
   ;; `--insecure' which forces the value of this variable to nil.
   ;; (default t)
   dotspacemacs-elpa-https t
   ;; Maximum allowed time in seconds to contact an ELPA repository.
   dotspacemacs-elpa-timeout 5
   ;; If non nil then spacemacs will check for updates at startup
   ;; when the current branch is not `develop'. Note that checking for
   ;; new versions works via git commands, thus it calls GitHub services
   ;; whenever you start Emacs. (default nil)
   dotspacemacs-check-for-update nil
   ;; If non-nil, a form that evaluates to a package directory. For example, to
   ;; use different package directories for different Emacs versions, set this
   ;; to `emacs-version'.
   dotspacemacs-elpa-subdirectory nil
   ;; One of `vim', `emacs' or `hybrid'.
   ;; `hybrid' is like `vim' except that `insert state' is replaced by the
   ;; `hybrid state' with `emacs' key bindings. The value can also be a list

   ;; variable `dotspacemacs-configuration-layers' to install it.
   ;; (default 'unused)
   dotspacemacs-enable-lazy-installation 'unused

   ;; If non-nil then Spacemacs will ask for confirmation before installing
   ;; a layer lazily. (default t)
   dotspacemacs-ask-for-lazy-installation t

   ;; List of additional paths where to look for configuration layers.
   ;; Paths must have a trailing slash (i.e. `~/.mycontribs/')
   dotspacemacs-configuration-layer-path '()

   ;; List of configuration layers to load.
   dotspacemacs-configuration-layers
   '(
     ;; ----------------------------------------------------------------
     ;; Example of useful layers you may want to use right away.
     ;; Uncomment some layer names and press `SPC f e R' (Vim style) or
     ;; `M-m f e R' (Emacs style) to install them.
     ;; ----------------------------------------------------------------
     (spacemacs-navigation :packages (not ace-window))
     (ivy :variables
