    ;; 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 '()
+   dotspacemacs-additional-packages '(zenburn-theme)
    ;; A list of packages that cannot be updated.
    dotspacemacs-frozen-packages '()
    ;; A list of packages that will not be installed and loaded.

     (go :variables
         go-tab-width 4)
     graphviz
     helm
     html
     javascript
     lua
     (markdown :variables
               markdown-live-preview-engine 'vmd)
     nlinum
     (org :variables
          org-enable-github-support t)

     plantuml
     prodigy
     python
     restclient
     (ruby :variables
           ruby-version-manager 'rvm)
     rust
     search-engine
     (shell :variables
            shell-default-shell 'eshell
            shell-default-term-shell "/bin/zsh")
     shell-scripts
     sql
     syntax-checking
     systemd
     typescript
     vinegar
     version-control
     yaml
