diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..8f6423fa
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+test-vm/.vagrant
diff --git a/README.md b/README.md
index 10610c3f..5ebf0ce6 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,57 @@
-## powerlevel9k Theme for Oh-My-Zsh
+## powerlevel9k Theme for ZSH
 
-This is a theme for [Oh-My-Zsh](https://github.com/robbyrussell/oh-my-zsh). This
-theme uses [Powerline Fonts](https://github.com/Lokaltog/powerline-fonts), thus
-giving you the most epic terminal styling in the universe.
+Powerlevel9k is a theme for ZSH which uses [Powerline
+Fonts](https://github.com/Lokaltog/powerline-fonts), thus giving you the most
+epic terminal styling in the universe.
 
 Look like a bad-ass. Impress everyone in 'Screenshot Your Desktop' threads. Use powerlevel9k.
 
+Powerlevel9k can be used with vanilla ZSH,
+[Oh-My-Zsh](https://github.com/robbyrussell/oh-my-zsh), or
+[Prezto](https://github.com/sorin-ionescu/prezto), and can also be installed
+using [antigen](https://github.com/zsh-users/antigen).
+
+
 In addition to looking amazing, this theme actually provides a lot of useful
-information in configurable prompt segments.
+information in configurable prompt segments. Here is an example of what it looks
+like with a normal installation and default settings:
+
+![](http://bhilburn.org/content/images/2015/01/pl9k-improved.png)
+
+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+**Table of Contents**  *generated with [DocToc](https://github.com/thlorenz/doctoc)*
+
+- [Features](#features)
+- [Installation](#installation)
+  - [Step 1: Install Powerlevel9k](#step-1-install-powerlevel9k)
+    - [Option 1: Install for Vanilla ZSH](#option-1-install-for-vanilla-zsh)
+    - [Option 2: Install for Oh-My-ZSH](#option-2-install-for-oh-my-zsh)
+    - [Option 3: Install for Prezto](#option-3-install-for-prezto)
+    - [Option 4: Install for antigen](#option-4-install-for-antigen)
+  - [Step 2: Install Powerline Fonts](#step-2-install-powerline-fonts)
+    - [Option 1: Install Powerline Fonts](#option-1-install-powerline-fonts)
+    - [Option 2: Install Awesome Powerline Fonts](#option-2-install-awesome-powerline-fonts)
+    - [Option 3: Compatible Mode](#option-3-compatible-mode)
+- [Segment Customization](#segment-customization)
+  - [The AWS Profile Segment](#the-aws-profile-segment)
+  - [The 'context' Segment](#the-context-segment)
+  - [The 'time' segment](#the-time-segment)
+  - [Unit Test Ratios](#unit-test-ratios)
+  - [The 'vcs' Segment](#the-vcs-segment)
+    - [Symbols](#symbols)
+- [Styling](#styling)
+  - [Double-Lined Prompt](#double-lined-prompt)
+  - [Light Color Theme](#light-color-theme)
+  - [Further color customizations](#further-color-customizations)
+- [Troubleshooting](#troubleshooting)
+  - [Gaps Between Segments](#gaps-between-segments)
+- [Meta](#meta)
+  - [Kudos](#kudos)
+  - [Developing](#developing)
+  - [Contributions / Bugs / Contact](#contributions--bugs--contact)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
 ### Features
 
@@ -21,7 +65,7 @@ information in configurable prompt segments.
     * various working tree statuses (e.g., unstaged, staged, etc.,)
 * Shows return-code of the last command if it is an error code
 * Indicates background jobs with a gear icon
-* Can conditionally display the `user@host` string when needed
+* Can conditionally display the `user@host` string when needed (e.g., SSH)
 * Provides segment for command history (so you can `$ !<num>` to re-run)
 * Plenty of additional segments to choose from (e.g., AWS, ruby)
 * Can be used as a single or double-lined prompt (see screenshots below)
@@ -31,22 +75,92 @@ information in configurable prompt segments.
 doesn't require Powerline fonts, check out the sister font,
 [hackersaurus](https://github.com/bhilburn/hackersaurus).**
 
-Here are some screenshots of `powerlevel9k` with default settings:
+Here is a detailed screenshot showing `powerlevel9k` with default settings and
+varying terminal status indicators:
 
 ![](http://bhilburn.org/content/images/2014/12/powerlevel9k.png)
 
-![](http://bhilburn.org/content/images/2015/01/pl9k-improved.png)
+### Installation
+There are two steps to start using this theme:
 
+1. Install the Powerlevel9k theme.
+2. Install Powerline-patched fonts.
+3. [Optional] Configuration
 
-### Installation
+To get the most out of Powerlevel9k, you need to install both the theme as well
+as Powerline-patched fonts, if you don't have them installed already. If you
+cannot install Powerline-patched fonts for some reason, follow the instructions
+below for a `compatible` install.
+
+No configuration is necessary post-installation if you like the default
+settings, but there is plenty of segment configuration available if you are
+interested.
+
+#### Step 1: Install Powerlevel9k
+There are four ways to install and use the Powerlevel9k theme: vanilla ZSH,
+Oh-My-Zsh, Prezto, and antigen. Do one of the following:
+
+##### Option 1: Install for Vanilla ZSH
+
+If you use just a vanilla ZSH install, simply clone this repository and
+reference it in your `~/.zshrc`:
+
+    $ git clone https://github.com/bhilburn/powerlevel9k.git
+    $ echo 'source  powerlevel9k/powerlevel9k.zsh-theme' >> ~/.zshrc
+
+##### Option 2: Install for Oh-My-ZSH
+
+To install this theme for
+[Oh-My-Zsh](https://github.com/robbyrussell/oh-my-zsh), clone this repository
+into your OMZ `custom/themes` directory.
+
+    $ cd ~/.oh-my-zsh/custom
+    $ git clone https://github.com/bhilburn/powerlevel9k.git themes/powerlevel9k
+
+You then need to select this theme in your `~/.zshrc`:
+
+    ZSH_THEME="powerlevel9k/powerlevel9k"
+
+##### Option 3: Install for Prezto
+
+To install this theme for use in Prezto, clone this repository into your
+[Prezto](https://github.com/sorin-ionescu/prezto) `prompt/external` directory.
+
+    $ cd ~.zprezto/modules/prompt/external
+    $ git clone https://github.com/bhilburn/powerlevel9k.git
+    $ ln -s powerlevel9k/powerlevel9k.zsh-theme ../functions/prompt_powerlevel9k_setup
+
+You then need to select this theme in your `~/.zpreztorc`:
+
+    zstyle ':prezto:module:prompt' theme 'powerlevel9k'
+
+##### Option 4: Install for antigen
+
+If you prefer [antigen](https://github.com/zsh-users/antigen), just add this
+theme to the antigen config in your `~/.zshrc`:
+
+    $ echo 'antigen theme bhilburn/powerlevel9k powerlevel9k' >> ~/.zshrc
+    $ echo 'antigen apply' >> ~/.zshrc
 
-There are two things you need to make this theme work correctly: Powerline
-fonts, and the theme itself.
+Note that you should define any customizations before calling `antigen theme`
+(i.e. setting the `POWERLEVEL9K_*` variables) in your `.zshrc`.
 
-#### Install Powerline Fonts
-First, you need to install Powerline Fonts. You can find the [installation
-instructions
-here](https://powerline.readthedocs.org/en/latest/installation/linux.html#fonts-installation).
+#### Step 2: Install Powerline Fonts
+Technically, you don't *have* to install Powerline fonts. If you are using
+a font that has some of the basic glyphs we need, you can use the theme in
+`compatible` mode - see the third option, below.
+
+To get the most out of theme, though, you'll want Powerline-patched fonts. There
+are two varieties of these: 'Powerline Fonts' and 'Awesome Powerline
+Fonts'. The latter includes additional glyphs that aren't required for a normal
+install.
+
+Do one of the following:
+
+##### Option 1: Install Powerline Fonts
+
+You can find the [installation instructions for Powerline Fonts here]
+(https://powerline.readthedocs.org/en/latest/installation/linux.html#fonts-installation).
 You can also find the raw font files [in this Github
 repository](https://github.com/powerline/fonts) if you want to manually install
 them for your OS.
@@ -54,17 +168,51 @@ them for your OS.
 After you have installed Powerline fonts, make the default font in your terminal
 emulator the Powerline font you want to use.
 
-#### Install Powerlevel9k
+This is the default mode for `Powerlevel9k`, and no further configuration is
+necessary.
 
-To install this theme, clone this repository into your Oh-My-Zsh `custom/themes`
-directory.
+**N.B.:** If Powerlevel9k is not working properly, it is almost always the case
+that the fonts were not properly installed, or you have not configured your
+terminal to use a Powerline-patched font!
 
-    $ cd ~/.oh-my-zsh/custom
-    $ git clone https://github.com/bhilburn/powerlevel9k.git themes/powerlevel9k
+##### Option 2: Install Awesome Powerline Fonts
 
-You then need to select this theme in your `~/.zshrc`:
+Alternatively, you can install [Awesome Powerline
+Fonts](https://github.com/gabrielelana/awesome-terminal-fonts), which provide
+a number of additional glyphs.
 
-    ZSH_THEME="powerlevel9k/powerlevel9k"
+You then need to indicate that you wish to use the additional glyphs by defining
+the following in your `~/.zshrc`:
+
+    POWERLEVEL9K_MODE='awesome-patched'
+
+If you choose to make use of this, your prompt will look something like this:
+
+![](https://cloud.githubusercontent.com/assets/1544760/7959660/67612918-09fb-11e5-9ef2-2308363c3c51.png)
+
+Note that if you prefer flat segment transitions, you can use the following with
+`Awesome Powerline Fonts` installed:
+
+    POWERLEVEL9K_MODE='flat'
+
+Which looks like this:
+
+![](https://cloud.githubusercontent.com/assets/1544760/7981324/76d0eb5a-0aae-11e5-9608-d662123d0b0a.png)
+
+##### Option 3: Compatible Mode
+
+This option is best if you prefer not to install additional fonts. This option
+will work out-of-the-box if your your terminal font supports the segment
+separator characters `\uE0B0` (left segment separator) and `\uE0B2` (right
+segment separator).
+
+All you need to do to in this case is install the `Powerlevel9k` theme itself,
+as explained above, and then define the following in your `~/.zshrc`:
+
+    POWERLEVEL9K_MODE='compatible'
+
+Note that depending on your terminal font, this may still not render
+appropriately. This configuration should be used as a back-up.
 
 ### Segment Customization
 
@@ -80,6 +228,7 @@ currently available are:
 * **rspec_stats** - Show a ratio of test classes vs code classes for RSpec.
 * **status** - The return code of the previous command, and status of background jobs.
 * **symfony2_tests** - Show a ratio of test classes vs code classes for Symfony2.
+* **symfony2_version** - Show the current Symfony2 version, if you are in a Symfony2-Project dir.
 * **time** - System time.
 * **virtualenv** - Your Python [VirtualEnv](https://virtualenv.pypa.io/en/latest/).
 * **vcs** - Information about this `git` or `hg` repository (if you are in one).
@@ -141,26 +290,39 @@ By default, the `vcs` segment will provide quite a bit of information. If you
 would also like for it to display the current hash / changeset, simply define
 `POWERLEVEL9K_SHOW_CHANGESET` in your `~/.zshrc`. If activated, it will show
 the first 12 characters of the changeset id. To change the amount of characters,
-set `POWERLEVEL9K_CHANGESET_HASH_LENTH` to any value you want.
-Example:
+set `POWERLEVEL9K_CHANGESET_HASH_LENGTH` to any value you want.
 
     # enable the vcs segment in general
     POWERLEVEL9K_SHOW_CHANGESET=true
     # just show the 6 first characters of changeset
     POWERLEVEL9K_CHANGESET_HASH_LENGTH=6
 
-##### Symbols
+You can also disable the branch icon in your prompt by setting
+`POWERLEVEL9K_HIDE_BRANCH_ICON` to `true`:
 
-The `vcs` segment uses various symbols to tell you the state of your repository:
+    # Hide the branch icon
+    POWERLEVEL9K_HIDE_BRANCH_ICON=true
+
+##### Symbols
 
-* `↑4` - The number of commits your repository is ahead of your remote branch
-* `↓5` - The number of commits your repository is behind of your remote branch
-* `⍟3` - The number of stashes, here 3.
-* `●`  - There are unstaged changes in your working copy
-* `✚`  - There are staged changes in your working copy
-* `?`  - There are files in your working copy, that are unknown to your repository
-* `→`  - The name of your branch differs from its tracking branch.
-* `☿`  - A mercurial bookmark is active.
+The `vcs` segment uses various symbols to tell you the state of your repository.
+These symbols depend on your installed font and selected `POWERLEVEL9K_MODE`
+from the [Installation](#Installation) section above.
+
+| `Compatible` | `Powerline` | `Awesome Powerline` | Explanation
+|--------------|---------------------|-------------------|--------------------------
+| `↑4`         | `↑4`                | ![icon_outgoing](https://cloud.githubusercontent.com/assets/1544760/7976089/b5904d6e-0a76-11e5-8147-5e873ac52d79.gif)4  | Number of commits your repository is ahead of your remote branch
+| `↓5`         | `↓5`                | ![icon_incoming](https://cloud.githubusercontent.com/assets/1544760/7976091/b5909c9c-0a76-11e5-9cad-9bf0a28a897c.gif)5  | Number of commits your repository is behind of your remote branch
+| `⍟3`         | `⍟3`                | ![icon_stash](https://cloud.githubusercontent.com/assets/1544760/7976094/b5ae9346-0a76-11e5-8cc7-e98b81824118.gif)3 | Number of stashes, here 3.
+| `●`          | `●`                 | ![icon_unstaged](https://cloud.githubusercontent.com/assets/1544760/7976096/b5aefa98-0a76-11e5-9408-985440471215.gif) | There are unstaged changes in your working copy
+| `✚`          | `✚`                 | ![icon_staged](https://cloud.githubusercontent.com/assets/1544760/7976095/b5aecc8a-0a76-11e5-8988-221afc6e8982.gif) | There are staged changes in your working copy
+| `?`          | `?`                 | ![icon_untracked](https://cloud.githubusercontent.com/assets/1544760/7976098/b5c7a2e6-0a76-11e5-8c5b-315b595b2bc4.gif)  | There are files in your working copy, that are unknown to your repository
+| `→`          | `→`                 | ![icon_remote_tracking_branch](https://cloud.githubusercontent.com/assets/1544760/7976093/b5ad2c0e-0a76-11e5-9cd3-62a077b1b0c7.gif) | The name of your branch differs from its tracking branch.
+| `☿`          | `☿`                 | ![icon_bookmark](https://cloud.githubusercontent.com/assets/1544760/7976197/546cfac6-0a78-11e5-88a6-ce3a1e0a174e.gif) | A mercurial bookmark is active.
+| `@`         | ![icon_branch_powerline](https://cloud.githubusercontent.com/assets/1544760/8000852/e7e8d8a0-0b5f-11e5-9834-de9b25c92284.gif) | ![](https://cloud.githubusercontent.com/assets/1544760/7976087/b58bbe3e-0a76-11e5-8d0d-7a5c1bc7f730.gif) | Branch Icon
+| None         |  None               | ![icon_commit](https://cloud.githubusercontent.com/assets/1544760/7976088/b58f4e50-0a76-11e5-9e70-86450d937030.gif)2c3705 | The current commit hash. Here "2c3705"
+| None         |  None               | ![icon_git](https://cloud.githubusercontent.com/assets/1544760/7976092/b5909f80-0a76-11e5-9950-1438b9d72465.gif) | Repository is a git repository
+| None         |  None               | ![icon_mercurial](https://cloud.githubusercontent.com/assets/1544760/7976090/b5908da6-0a76-11e5-8c91-452b6e73f631.gif) | Repository is a Mercurial repository
 
 ### Styling
 
@@ -253,14 +415,25 @@ Thankfully, this is easy to fix. This happens if you have successfully installed
 Powerline fonts, but did not make a Powerline font the default font in your
 terminal emulator (e.g., 'terminator', 'gnome-terminal', 'konsole', etc.,).
 
-### Contributions / Bugs / Contact
+### Meta
+
+#### Kudos
+
+This theme wouldn't have happened without inspiration from the original [agnoster](https://gist.github.com/agnoster/3712874) Oh-My-ZSH theme.
+
+Before creating this theme, I also tried [jeremyFreeAgent's theme](https://github.com/jeremyFreeAgent/oh-my-zsh-powerline-theme) and [maverick2000's theme, ZSH2000](https://github.com/maverick2000/zsh2000).
+
+#### Developing
+
+Documentation for developers is kept on the [Powerlevel9k Github
+wiki](https://github.com/bhilburn/powerlevel9k/wiki/Developers'-Guide).
+
+#### Contributions / Bugs / Contact
 
 If you have any requests or bug reports, please use the tracker in this Github
 repository.
 
-I'm happy to accept code contributions from anyone who has an improvement!
-Please submit your contribution as a Github pull-request.
+I'm happy to accept code contributions from anyone who has a bug fix, new feature, or just a general improvement! Please submit your contribution as a Github pull-request.
 
 If you would like to contact me directly, you can find my e-mail address on my
 [Github profile page](https://github.com/bhilburn).
-
diff --git a/powerlevel9k.zsh-theme b/powerlevel9k.zsh-theme
index a049f863..b8c8ed40 100644
--- a/powerlevel9k.zsh-theme
+++ b/powerlevel9k.zsh-theme
@@ -1,4 +1,4 @@
-# vim:ft=zsh ts=2 sw=2 sts=2
+# vim:ft=zsh ts=2 sw=2 sts=2 et fenc=utf-8
 ################################################################
 # powerlevel9k Theme
 # https://github.com/bhilburn/powerlevel9k
@@ -8,9 +8,6 @@
 #
 # The `vcs_info` hooks in this file are from Tom Upton:
 # https://github.com/tupton/dotfiles/blob/master/zsh/zshrc
-#
-# In order for this theme to render correctly, you will need a Powerline-patched font:
-# https://github.com/Lokaltog/powerline-fonts
 ################################################################
 
 ################################################################
@@ -43,24 +40,140 @@
 #   POWERLEVEL9K_COLOR_SCHEME='light'
 ################################################################
 
-# The `CURRENT_BG` variable is used to remember what the last BG color used was
-# when building the left-hand prompt. Because the RPROMPT is created from
-# right-left but reads the opposite, this isn't necessary for the other side.
-CURRENT_BG='NONE'
+## Debugging
+#zstyle ':vcs_info:*+*:*' debug true
+#set -o xtrace
 
 # These characters require the Powerline fonts to work properly. If see boxes or
-# bizarre characters below, your fonts are not correctly installed.
-LEFT_SEGMENT_SEPARATOR=''
-RIGHT_SEGMENT_SEPARATOR=''
-VCS_UNSTAGED_ICON='●'
-VCS_STAGED_ICON='✚'
+# bizarre characters below, your fonts are not correctly installed. If you
+# do not want to install a special font, you can set `POWERLEVEL9K_MODE` to
+# `compatible`. This shows all icons in regular symbols.
+case $POWERLEVEL9K_MODE in
+  'flat')
+    # Awesome-Patched Font required!
+    # See https://github.com/gabrielelana/awesome-terminal-fonts/tree/patching-strategy/patched
+    LEFT_SEGMENT_SEPARATOR=''
+    RIGHT_SEGMENT_SEPARATOR=''
+    ROOT_ICON="\uE801" # 
+    RUBY_ICON="\uE847" # 
+    AWS_ICON="\uE895" # 
+    BACKGROUND_JOBS_ICON="\uE82F " # 
+    TEST_ICON="\uE891" # 
+    OK_ICON="\u2713" # ✓
+    FAIL_ICON="\u2718" # ✘
+    SYMFONY_ICON="SF"
+    VCS_UNTRACKED_ICON="\uE16C" # 
+    VCS_UNSTAGED_ICON="\uE17C" # 
+    VCS_STAGED_ICON="\uE168" # 
+    VCS_STASH_ICON="\uE133 " # 
+    #VCS_INCOMING_CHANGES="\uE1EB " # 
+    #VCS_INCOMING_CHANGES="\uE80D " # 
+    VCS_INCOMING_CHANGES="\uE131 " # 
+    #VCS_OUTGOING_CHANGES="\uE1EC " # 
+    #VCS_OUTGOING_CHANGES="\uE80E " # 
+    VCS_OUTGOING_CHANGES="\uE132 " # 
+    VCS_TAG_ICON="\uE817 " # 
+    VCS_BOOKMARK_ICON="\uE87B" # 
+    VCS_COMMIT_ICON="\uE821 " # 
+    VCS_BRANCH_ICON="\uE220" # 
+    VCS_REMOTE_BRANCH_ICON="\uE804" # 
+    VCS_GIT_ICON="\uE20E  " # 
+    VCS_HG_ICON="\uE1C3  " # 
+  ;;
+  'compatible')
+    LEFT_SEGMENT_SEPARATOR="\u2B80" # ⮀
+    RIGHT_SEGMENT_SEPARATOR="\u2B82" # ⮂
+    ROOT_ICON="\u26A1" # ⚡
+    RUBY_ICON=''
+    AWS_ICON="AWS:"
+    BACKGROUND_JOBS_ICON="\u2699" # ⚙
+    TEST_ICON=''
+    OK_ICON="\u2713" # ✓
+    FAIL_ICON="\u2718" # ✘
+    SYMFONY_ICON="SF"
+    VCS_UNTRACKED_ICON='?'
+    VCS_UNSTAGED_ICON="\u25CF" # ●
+    VCS_STAGED_ICON="\u271A" # ✚
+    VCS_STASH_ICON="\u235F" # ⍟
+    VCS_INCOMING_CHANGES="\u2193" # ↓
+    VCS_OUTGOING_CHANGES="\u2191" # ↑
+    VCS_TAG_ICON=''
+    VCS_BOOKMARK_ICON="\u263F" # ☿
+    VCS_COMMIT_ICON=''
+    VCS_BRANCH_ICON='@'
+    VCS_REMOTE_BRANCH_ICON="\u2192" # →
+    VCS_GIT_ICON='Git'
+    VCS_HG_ICON='HG'
+  ;;
+  'awesome-patched')
+    # Awesome-Patched Font required!
+    # See https://github.com/gabrielelana/awesome-terminal-fonts/tree/patching-strategy/patched
+    LEFT_SEGMENT_SEPARATOR="\uE0B0" # 
+    RIGHT_SEGMENT_SEPARATOR="\uE0B2" # 
+    ROOT_ICON="\u26A1" # ⚡
+    RUBY_ICON="\uE847" # 
+    AWS_ICON="\uE895" # 
+    BACKGROUND_JOBS_ICON="\uE82F " # 
+    TEST_ICON="\uE891" # 
+    OK_ICON="\u2713" # ✓
+    FAIL_ICON="\u2718" # ✘
+    SYMFONY_ICON="SF"
+    VCS_UNTRACKED_ICON="\uE16C" # 
+    VCS_UNSTAGED_ICON="\uE17C" # 
+    VCS_STAGED_ICON="\uE168" # 
+    VCS_STASH_ICON="\uE133 " # 
+    #VCS_INCOMING_CHANGES="\uE1EB " # 
+    #VCS_INCOMING_CHANGES="\uE80D " # 
+    VCS_INCOMING_CHANGES="\uE131 " # 
+    #VCS_OUTGOING_CHANGES="\uE1EC " # 
+    #VCS_OUTGOING_CHANGES="\uE80E " # 
+    VCS_OUTGOING_CHANGES="\uE132 " # 
+    VCS_TAG_ICON="\uE817 " # 
+    VCS_BOOKMARK_ICON="\uE87B" # 
+    VCS_COMMIT_ICON="\uE821 " # 
+    VCS_BRANCH_ICON="\uE220" # 
+    VCS_REMOTE_BRANCH_ICON="\uE804" # 
+    VCS_GIT_ICON="\uE20E  " # 
+    VCS_HG_ICON="\uE1C3  " # 
+  ;;
+  *)
+    # Powerline-Patched Font required!
+    # See https://github.com/Lokaltog/powerline-fonts
+    LEFT_SEGMENT_SEPARATOR="\uE0B0" # 
+    RIGHT_SEGMENT_SEPARATOR="\uE0B2" # 
+    ROOT_ICON="\u26A1" # ⚡
+    RUBY_ICON=''
+    AWS_ICON="AWS:"
+    BACKGROUND_JOBS_ICON="\u2699" # ⚙
+    TEST_ICON=''
+    OK_ICON="\u2713" # ✓
+    FAIL_ICON="\u2718" # ✘
+    SYMFONY_ICON="SF"
+    VCS_UNTRACKED_ICON='?'
+    VCS_UNSTAGED_ICON="\u25CF" # ●
+    VCS_STAGED_ICON="\u271A" # ✚
+    VCS_STASH_ICON="\u235F" # ⍟
+    VCS_INCOMING_CHANGES="\u2193" # ↓
+    VCS_OUTGOING_CHANGES="\u2191" # ↑
+    VCS_TAG_ICON=''
+    VCS_BOOKMARK_ICON="\u263F" # ☿
+    VCS_COMMIT_ICON=''
+    VCS_BRANCH_ICON="\uE0A0 " # 
+    VCS_REMOTE_BRANCH_ICON="\u2192" # →
+    VCS_GIT_ICON=""
+    VCS_HG_ICON=""
+  ;;
+esac
+
+if [[ "$POWERLEVEL9K_HIDE_BRANCH_ICON" == true ]]; then
+    VCS_BRANCH_ICON=''
+fi
 
 ################################################################
 # color scheme
 ################################################################
 
-local DEFAULT_COLOR DEFAULT_COLOR_INVERTED DEFAULT_COLOR_DARK
-if [[ $POWERLEVEL9K_COLOR_SCHEME == "light" ]]; then
+if [[ "$POWERLEVEL9K_COLOR_SCHEME" == "light" ]]; then
   DEFAULT_COLOR=white
   DEFAULT_COLOR_INVERTED=black
   DEFAULT_COLOR_DARK="252"
@@ -70,8 +183,8 @@ else
   DEFAULT_COLOR_DARK="236"
 fi
 
-local VCS_FOREGROUND_COLOR=$DEFAULT_COLOR
-local VCS_FOREGROUND_COLOR_DARK=$DEFAULT_COLOR_DARK
+VCS_FOREGROUND_COLOR=$DEFAULT_COLOR
+VCS_FOREGROUND_COLOR_DARK=$DEFAULT_COLOR_DARK
 
 # If user has defined custom colors for the `vcs` segment, override the defaults
 if [[ -n $POWERLEVEL9K_VCS_FOREGROUND ]]; then
@@ -88,31 +201,35 @@ fi
 setopt prompt_subst
 autoload -Uz vcs_info
 
-local VCS_WORKDIR_DIRTY=false
-local VCS_CHANGESET_PREFIX=''
+VCS_WORKDIR_DIRTY=false
+VCS_CHANGESET_PREFIX=''
 if [[ "$POWERLEVEL9K_SHOW_CHANGESET" == true ]]; then
   # Default: Just display the first 12 characters of our changeset-ID.
   local VCS_CHANGESET_HASH_LENGTH=12
-  if [[ -n $POWERLEVEL9K_CHANGESET_HASH_LENGTH ]]; then
-    VCS_CHANGESET_HASH_LENGTH=$POWERLEVEL9K_CHANGESET_HASH_LENGTH
+  if [[ -n "$POWERLEVEL9K_CHANGESET_HASH_LENGTH" ]]; then
+    VCS_CHANGESET_HASH_LENGTH="$POWERLEVEL9K_CHANGESET_HASH_LENGTH"
   fi
 
-  VCS_CHANGESET_PREFIX="%F{$VCS_FOREGROUND_COLOR_DARK}%0.$VCS_CHANGESET_HASH_LENGTH""i@%f"
+  VCS_CHANGESET_PREFIX="%F{$VCS_FOREGROUND_COLOR_DARK}$VCS_COMMIT_ICON%0.$VCS_CHANGESET_HASH_LENGTH""i%f "
 fi
 
 zstyle ':vcs_info:*' enable git hg
 zstyle ':vcs_info:*' check-for-changes true
 
-zstyle ':vcs_info:*' formats " $VCS_CHANGESET_PREFIX%F{$VCS_FOREGROUND_COLOR}%b%c%u%m%f"
+VCS_DEFAULT_FORMAT="$VCS_CHANGESET_PREFIX%F{$VCS_FOREGROUND_COLOR}%b%c%u%m%f"
+zstyle ':vcs_info:git:*' formats "%F{$VCS_FOREGROUND_COLOR}$VCS_GIT_ICON%f$VCS_DEFAULT_FORMAT" 
+zstyle ':vcs_info:hg:*' formats "%F{$VCS_FOREGROUND_COLOR}$VCS_HG_ICON%f$VCS_DEFAULT_FORMAT" 
+
 zstyle ':vcs_info:*' actionformats " %b %F{red}| %a%f"
 
 zstyle ':vcs_info:*' stagedstr " %F{$VCS_FOREGROUND_COLOR}$VCS_STAGED_ICON%f"
 zstyle ':vcs_info:*' unstagedstr " %F{$VCS_FOREGROUND_COLOR}$VCS_UNSTAGED_ICON%f"
 
-zstyle ':vcs_info:git*+set-message:*' hooks git-untracked git-aheadbehind git-stash git-remotebranch git-tagname
+zstyle ':vcs_info:git*+set-message:*' hooks vcs-detect-changes git-untracked git-aheadbehind git-stash git-remotebranch git-tagname
+zstyle ':vcs_info:hg*+set-message:*' hooks vcs-detect-changes
 
 # For Hg, only show the branch name
-zstyle ':vcs_info:hg*:*' branchformat "%b"
+zstyle ':vcs_info:hg*:*' branchformat "$VCS_BRANCH_ICON%b"
 # The `get-revision` function must be turned on for dirty-check to work for Hg
 zstyle ':vcs_info:hg*:*' get-revision true
 zstyle ':vcs_info:hg*:*' get-bookmarks true
@@ -120,23 +237,20 @@ zstyle ':vcs_info:hg*+gen-hg-bookmark-string:*' hooks hg-bookmarks
 
 if [[ "$POWERLEVEL9K_SHOW_CHANGESET" == true ]]; then
   zstyle ':vcs_info:*' get-revision true
-else
-  # A little performance-boost for large repositories (especially Hg). If we
-  # don't show the changeset, we can switch to simple mode.
-  zstyle ':vcs_info:*' use-simple true
 fi
 
-## Debugging
-#zstyle ':vcs_info:*+*:*' debug true
-#set -o xtrace
-
 ################################################################
 # Prompt Segment Constructors
 ################################################################
 
 # Begin a left prompt segment
-# Takes two arguments, background and foreground. Both can be omitted,
-# rendering default background/foreground.
+# Takes four arguments:
+#   * $1: Name of the function that was orginally invoked (mandatory).
+#         Necessary, to make the dynamic color-overwrite mechanism work.
+#   * $2: Background color
+#   * $3: Foreground color
+#   * $4: The segment content
+# The latter three can be omitted,
 left_prompt_segment() {
   # Overwrite given background-color by user defined variable for this segment.
   # We get as first Parameter the function name, which called this function. 
@@ -157,29 +271,35 @@ left_prompt_segment() {
   [[ -n $2 ]] && bg="%K{$2}" || bg="%k"
   [[ -n $3 ]] && fg="%F{$3}" || fg="%f"
   if [[ $CURRENT_BG != 'NONE' && $2 != $CURRENT_BG ]]; then
+    # Middle segment
     echo -n "%{$bg%F{$CURRENT_BG}%}$LEFT_SEGMENT_SEPARATOR%{$fg%} "
   else
+    # First segment
     echo -n "%{$bg%}%{$fg%} "
   fi
   CURRENT_BG=$2
-  [[ -n $4 ]] && echo -n $4
+  [[ -n $4 ]] && echo -n "$4 "
 }
 
 # End the left prompt, closing any open segments
 left_prompt_end() {
   if [[ -n $CURRENT_BG ]]; then
-    echo -n " %{%k%F{$CURRENT_BG}%}$LEFT_SEGMENT_SEPARATOR"
+    echo -n "%{%k%F{$CURRENT_BG}%}$LEFT_SEGMENT_SEPARATOR"
   else
-    echo -n " %{%k%}"
+    echo -n "%{%k%}"
   fi
-  echo -n "%{%f%}"
+  echo -n "%{%f%} "
   CURRENT_BG=''
 }
 
 # Begin a right prompt segment
-# Takes two arguments, background and foreground. Both can be omitted,
-# rendering default background/foreground. No ending for the right prompt
-# segment is needed (unlike the left prompt, above).
+# Takes four arguments:
+#   * $1: Name of the function that was orginally invoked (mandatory).
+#         Necessary, to make the dynamic color-overwrite mechanism work.
+#   * $2: Background color
+#   * $3: Foreground color
+#   * $4: The segment content
+# No ending for the right prompt segment is needed (unlike the left prompt, above).
 right_prompt_segment() {
   # Overwrite given background-color by user defined variable for this segment.
   local BACKGROUND_USER_VARIABLE=POWERLEVEL9K_${(U)1#prompt_}_BACKGROUND
@@ -194,8 +314,8 @@ right_prompt_segment() {
   local bg fg
   [[ -n $2 ]] && bg="%K{$2}" || bg="%k"
   [[ -n $3 ]] && fg="%F{$3}" || fg="%f"
-    echo -n " %f%F{$2}$RIGHT_SEGMENT_SEPARATOR%f%{$bg%}%{$fg%} "
-  [[ -n $4 ]] && echo -n $4
+  echo -n "%f%F{$2}$RIGHT_SEGMENT_SEPARATOR%f%{$bg%}%{$fg%} "
+  [[ -n $4 ]] && echo -n "$4 "
 }
 
 ################################################################
@@ -204,21 +324,21 @@ right_prompt_segment() {
 prompt_vcs() {
   local vcs_prompt="${vcs_info_msg_0_}"
 
-  if [[ -n $vcs_prompt ]]; then
+  if [[ -n "$vcs_prompt" ]]; then
     if [[ "$VCS_WORKDIR_DIRTY" == true ]]; then
-      $1_prompt_segment $0_MODIFIED yellow $DEFAULT_COLOR
+      $1_prompt_segment "$0_MODIFIED" "yellow" "$DEFAULT_COLOR"
     else
-      $1_prompt_segment $0 green $DEFAULT_COLOR
+      $1_prompt_segment "$0" "green" "$DEFAULT_COLOR"
     fi
 
-    echo -n "%F{$VCS_FOREGROUND_COLOR}%f$vcs_prompt"
+    echo -n "%F{$VCS_FOREGROUND_COLOR}%f$vcs_prompt "
   fi
 }
 
 function +vi-git-untracked() {
     if [[ $(git rev-parse --is-inside-work-tree 2> /dev/null) == 'true' && \
             $(git ls-files --others --exclude-standard | sed q | wc -l | tr -d ' ') != 0 ]]; then
-        hook_com[unstaged]+=" %F{$VCS_FOREGROUND_COLOR}?%f"
+        hook_com[unstaged]+=" %F{$VCS_FOREGROUND_COLOR}$VCS_UNTRACKED_ICON%f"
     fi
 }
 
@@ -231,12 +351,12 @@ function +vi-git-aheadbehind() {
     # for git prior to 1.7
     # ahead=$(git rev-list origin/${branch_name}..HEAD | wc -l)
     ahead=$(git rev-list ${branch_name}@{upstream}..HEAD 2>/dev/null | wc -l | tr -d ' ')
-    (( $ahead )) && gitstatus+=( " %F{$VCS_FOREGROUND_COLOR}↑${ahead// /}%f" )
+    (( $ahead )) && gitstatus+=( " %F{$VCS_FOREGROUND_COLOR}$VCS_OUTGOING_CHANGES${ahead// /}%f" )
 
     # for git prior to 1.7
     # behind=$(git rev-list HEAD..origin/${branch_name} | wc -l)
     behind=$(git rev-list HEAD..${branch_name}@{upstream} 2>/dev/null | wc -l | tr -d ' ')
-    (( $behind )) && gitstatus+=( " %F{$VCS_FOREGROUND_COLOR}↓${behind// /}%f" )
+    (( $behind )) && gitstatus+=( " %F{$VCS_FOREGROUND_COLOR}$VCS_INCOMING_CHANGES${behind// /}%f" )
 
     hook_com[misc]+=${(j::)gitstatus}
 }
@@ -248,12 +368,12 @@ function +vi-git-remotebranch() {
     remote=${$(git rev-parse --verify HEAD@{upstream} --symbolic-full-name 2>/dev/null)/refs\/(remotes|heads)\/}
     branch_name=${$(git symbolic-ref --short HEAD 2>/dev/null)}
 
-    hook_com[branch]="%F{$VCS_FOREGROUND_COLOR}${hook_com[branch]}%f"
+    hook_com[branch]="%F{$VCS_FOREGROUND_COLOR}$VCS_BRANCH_ICON${hook_com[branch]}%f"
     # Always show the remote
     #if [[ -n ${remote} ]] ; then
     # Only show the remote if it differs from the local
     if [[ -n ${remote} && ${remote#*/} != ${branch_name} ]] ; then
-        hook_com[branch]+="%F{$VCS_FOREGROUND_COLOR}→%f%F{$VCS_FOREGROUND_COLOR}${remote// /}%f"
+        hook_com[branch]+="%F{$VCS_FOREGROUND_COLOR}$VCS_REMOTE_BRANCH_ICON%f%F{$VCS_FOREGROUND_COLOR}${remote// /}%f"
     fi
 }
 
@@ -261,7 +381,7 @@ function +vi-git-tagname() {
     local tag
 
     tag=$(git describe --tags --exact-match HEAD 2>/dev/null)
-    [[ -n ${tag} ]] && hook_com[branch]=" %F{$VCS_FOREGROUND_COLOR}${tag}%f"
+    [[ -n "${tag}" ]] && hook_com[branch]=" %F{$VCS_FOREGROUND_COLOR}$VCS_TAG_ICON${tag}%f"
 }
 
 # Show count of stashed changes
@@ -271,13 +391,13 @@ function +vi-git-stash() {
 
   if [[ -s $(git rev-parse --git-dir)/refs/stash ]] ; then
     stashes=$(git stash list 2>/dev/null | wc -l)
-    hook_com[misc]+=" %F{$VCS_FOREGROUND_COLOR}⍟${stashes// /}%f"
+    hook_com[misc]+=" %F{$VCS_FOREGROUND_COLOR}$VCS_STASH_ICON${stashes// /}%f"
   fi
 }
 
 function +vi-hg-bookmarks() {
   if [[ -n "${hgbmarks[@]}" ]]; then
-    hook_com[hg-bookmark-string]=" ☿ ${hgbmarks[@]}"
+    hook_com[hg-bookmark-string]=" %F{$VCS_FOREGROUND_COLOR}$VCS_BOOKMARK_ICON${hgbmarks[@]}%f"
 
     # And to signal, that we want to use the sting we just generated,
     # set the special variable `ret' to something other than the default
@@ -288,7 +408,7 @@ function +vi-hg-bookmarks() {
 }
 
 function +vi-vcs-detect-changes() {
-  if [[ -n ${hook_com[staged]} ]] || [[ -n ${hook_com[unstaged]} ]]; then
+  if [[ -n "${hook_com[staged]}" ]] || [[ -n "${hook_com[unstaged]}" ]]; then
     VCS_WORKDIR_DIRTY=true
   else
     VCS_WORKDIR_DIRTY=false
@@ -299,12 +419,17 @@ function +vi-vcs-detect-changes() {
 # Prompt Segments
 ################################################################
 
+# The `CURRENT_BG` variable is used to remember what the last BG color used was
+# when building the left-hand prompt. Because the RPROMPT is created from
+# right-left but reads the opposite, this isn't necessary for the other side.
+CURRENT_BG='NONE'
+
 # AWS Profile
 prompt_aws() {
-  local aws_profile=$AWS_DEFAULT_PROFILE
-  if [[ -n $aws_profile ]]; 
+  local aws_profile="$AWS_DEFAULT_PROFILE"
+  if [[ -n "$aws_profile" ]]; 
   then
-    $1_prompt_segment $0 red white "AWS: $aws_profile"
+    $1_prompt_segment "$0" red white "$AWS_ICON $aws_profile"
   fi
 }
 
@@ -312,7 +437,7 @@ prompt_aws() {
 # Note that if $DEFAULT_USER is not set, this prompt segment will always print
 prompt_context() {
   if [[ "$USER" != "$DEFAULT_USER" || -n "$SSH_CLIENT" ]]; then
-    $1_prompt_segment $0 $DEFAULT_COLOR "011" "%(!.%{%F{yellow}%}.)$USER@%m"
+    $1_prompt_segment "$0" "$DEFAULT_COLOR" "011" "%(!.%{%F{yellow}%}.)$USER@%m"
   fi
 }
 
@@ -324,12 +449,12 @@ prompt_dir() {
     current_path="%$((POWERLEVEL9K_SHORTEN_DIR_LENGTH+1))(c:.../:)%${POWERLEVEL9K_SHORTEN_DIR_LENGTH}c"
   fi
 
-  $1_prompt_segment $0 blue $DEFAULT_COLOR $current_path
+  $1_prompt_segment "$0" "blue" "$DEFAULT_COLOR" "$current_path"
 }
 
 # Command number (in local history)
 prompt_history() {
-  $1_prompt_segment $0 "244" $DEFAULT_COLOR '%h'
+  $1_prompt_segment "$0" "244" "$DEFAULT_COLOR" '%h'
 }
 
 # Right Status: (return code, root status, background jobs)
@@ -339,24 +464,24 @@ prompt_longstatus() {
   local symbols bg
   symbols=()
 
-  if [[ $RETVAL -ne 0 ]]; then
-    symbols+="%{%F{"226"}%}%? ↵"
+  if [[ "$RETVAL" -ne 0 ]]; then
+    symbols+="%F{226}%? ↵"
     bg="009"
   else
-    symbols+="%{%F{"046"}%}✓"
+    symbols+="%{%F{"046"}%}$OK_ICON"
     bg="008"
   fi
 
-  [[ $UID -eq 0 ]] && symbols+="%{%F{yellow}%}⚡"
-  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}⚙"
+  [[ "$UID" -eq 0 ]] && symbols+="%{%F{yellow}%} $ROOT_ICON"
+  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}$BACKGROUND_JOBS_ICON"
 
-  [[ -n "$symbols" ]] && $1_prompt_segment $0 $bg $DEFAULT_COLOR "$symbols"
+  [[ -n "$symbols" ]] && $1_prompt_segment "$0" "$bg" "$DEFAULT_COLOR" "$symbols"
 }
 
 # rbenv information
 prompt_rbenv() {
   if [[ -n "$RBENV_VERSION" ]]; then
-    $1_prompt_segment $0 red $DEFAULT_COLOR "$RBENV_VERSION"
+    $1_prompt_segment "$0" "red" "$DEFAULT_COLOR" "$RBENV_VERSION"
   fi
 }
 
@@ -366,7 +491,7 @@ prompt_rspec_stats() {
     local code_amount=$(ls -1 app/**/*.rb | wc -l)
     local tests_amount=$(ls -1 spec/**/*.rb | wc -l)
 
-    build_test_stats $1 $0 $code_amount $tests_amount "RSpec"
+    build_test_stats "$1" $0 "$code_amount" $tests_amount "RSpec $TEST_ICON"
   fi
 }
 
@@ -375,7 +500,7 @@ prompt_rvm() {
   local rvm_prompt
   rvm_prompt=`rvm-prompt`
   if [ "$rvm_prompt" != "" ]; then
-    $1_prompt_segment $0 "240" $DEFAULT_COLOR "$rvm_prompt "
+    $1_prompt_segment "$0" "240" "$DEFAULT_COLOR" "$rvm_prompt $RUBY_ICON "
   fi
 }
 
@@ -384,11 +509,11 @@ prompt_rvm() {
 prompt_status() {
   local symbols
   symbols=()
-  [[ $RETVAL -ne 0 ]] && symbols+="%{%F{red}%}✘"
-  [[ $UID -eq 0 ]] && symbols+="%{%F{yellow}%}⚡"
-  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}⚙"
+  [[ "$RETVAL" -ne 0 ]] && symbols+="%{%F{red}%}$FAIL_ICON"
+  [[ "$UID" -eq 0 ]] && symbols+="%{%F{yellow}%} $ROOT_ICON"
+  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}$BACKGROUND_JOBS_ICON"
 
-  [[ -n "$symbols" ]] && $1_prompt_segment $0 $DEFAULT_COLOR default "$symbols"
+  [[ -n "$symbols" ]] && $1_prompt_segment "$0" "$DEFAULT_COLOR" "default" "$symbols"
 }
 
 # Symfony2-PHPUnit test ratio
@@ -397,33 +522,41 @@ prompt_symfony2_tests() {
     local code_amount=$(ls -1 src/**/*.php | grep -v Tests | wc -l)
     local tests_amount=$(ls -1 src/**/*.php | grep Tests | wc -l)
 
-    build_test_stats $1 $0 $code_amount $tests_amount "SF2-Tests"
+    build_test_stats "$1" "$0" "$code_amount" "$tests_amount" "SF2 $TEST_ICON"
+  fi
+}
+
+# Symfony2-Version
+prompt_symfony2_version() {
+  if [[ -f app/bootstrap.php.cache ]]; then
+    local symfony2_version=$(grep " VERSION " app/bootstrap.php.cache | sed -e 's/[^.0-9]*//g')
+    $1_prompt_segment "$0" "240" "$DEFAULT_COLOR" "$SYMFONY_ICON $symfony2_version"
   fi
 }
 
 # Show a ratio of tests vs code
 build_test_stats() {
-  local code_amount=$3
-  local tests_amount=$4+0.00001
-  local headline=$5
+  local code_amount="$3"
+  local tests_amount="$4"+0.00001
+  local headline="$5"
 
   # Set float precision to 2 digits:
   typeset -F 2 ratio
   local ratio=$(( (tests_amount/code_amount) * 100 ))
 
-  [[ ratio -ge 0.75 ]] && $1_prompt_segment ${2}_GOOD cyan $DEFAULT_COLOR "$headline: $ratio%%"
-  [[ ratio -ge 0.5 && ratio -lt 0.75 ]] && $1_prompt_segment $2_AVG yellow $DEFAULT_COLOR "$headline: $ratio%%"
-  [[ ratio -lt 0.5 ]] && $1_prompt_segment $2_BAD red $DEFAULT_COLOR "$headline: $ratio%%"
+  [[ ratio -ge 0.75 ]] && $1_prompt_segment "${2}_GOOD" "cyan" "$DEFAULT_COLOR" "$headline: $ratio%%"
+  [[ ratio -ge 0.5 && ratio -lt 0.75 ]] && $1_prompt_segment "$2_AVG" "yellow" "$DEFAULT_COLOR" "$headline: $ratio%%"
+  [[ ratio -lt 0.5 ]] && $1_prompt_segment "$2_BAD" "red" "$DEFAULT_COLOR" "$headline: $ratio%%"
 }
 
 # System time
 prompt_time() {
-  local time_format='%D{%H:%M:%S}'
-  if [[ -n $POWERLEVEL9K_TIME_FORMAT ]]; then
-    time_format=$POWERLEVEL9K_TIME_FORMAT
+  local time_format="%D{%H:%M:%S}"
+  if [[ -n "$POWERLEVEL9K_TIME_FORMAT" ]]; then
+    time_format="$POWERLEVEL9K_TIME_FORMAT"
   fi
 
-  $1_prompt_segment $0 $DEFAULT_COLOR_INVERTED $DEFAULT_COLOR "$time_format "
+  $1_prompt_segment "$0" "$DEFAULT_COLOR_INVERTED" "$DEFAULT_COLOR" "$time_format"
 }
 
 # Virtualenv: current working virtualenv
@@ -431,8 +564,8 @@ prompt_time() {
 # https://virtualenv.pypa.io/en/latest/
 prompt_virtualenv() {
   local virtualenv_path="$VIRTUAL_ENV"
-  if [[ -n $virtualenv_path && -n $VIRTUAL_ENV_DISABLE_PROMPT ]]; then
-    $1_prompt_segment $0 blue $DEFAULT_COLOR "(`basename $virtualenv_path`)"
+  if [[ -n "$virtualenv_path" && -n "$VIRTUAL_ENV_DISABLE_PROMPT" ]]; then
+    $1_prompt_segment "$0" "blue" "$DEFAULT_COLOR" "(`basename $virtualenv_path`)"
   fi
 }
 
@@ -442,7 +575,7 @@ prompt_virtualenv() {
 
 # Main prompt
 build_left_prompt() {
-  if [[ ${#POWERLEVEL9K_LEFT_PROMPT_ELEMENTS} == 0 ]]; then
+  if [[ "${#POWERLEVEL9K_LEFT_PROMPT_ELEMENTS}" == 0 ]]; then
     POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(context dir rbenv vcs)
   fi
 
@@ -457,7 +590,7 @@ build_left_prompt() {
 build_right_prompt() {
   RETVAL=$?
 
-  if [[ ${#POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS} == 0 ]]; then
+  if [[ "${#POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS}" == 0 ]]; then
     POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(longstatus history time)
   fi
 
@@ -466,25 +599,36 @@ build_right_prompt() {
   done
 }
 
-precmd() {
-  vcs_info
+powerlevel9k_init() {
+  setopt LOCAL_OPTIONS
+  unsetopt XTRACE KSH_ARRAYS
+  prompt_opts=(cr percent subst)
+
+  # initialize colors
+  autoload -U colors && colors
+
+  # initialize VCS
+  autoload -Uz add-zsh-hook
+
+  add-zsh-hook precmd vcs_info
+
+  if [[ "$POWERLEVEL9K_PROMPT_ON_NEWLINE" == true ]]; then
+    PROMPT="╭─%{%f%b%k%}"'$(build_left_prompt)'" 
+╰─ "
+    # The right prompt should be on the same line as the first line of the left
+    # prompt.  To do so, there is just a quite ugly workaround: Before zsh draws
+    # the RPROMPT, we advise it, to go one line up. At the end of RPROMPT, we
+    # advise it to go one line down. See:
+    # http://superuser.com/questions/357107/zsh-right-justify-in-ps1
+    RPROMPT_PREFIX='%{'$'\e[1A''%}' # one line up
+    RPROMPT_SUFFIX='%{'$'\e[1B''%}' # one line down
+  else
+    PROMPT="%{%f%b%k%}"'$(build_left_prompt)'
+    RPROMPT_PREFIX=''
+    RPROMPT_SUFFIX=''
+  fi
+  RPROMPT=$RPROMPT_PREFIX"%{%f%b%k%}"'$(build_right_prompt)'"%{$reset_color%}"$RPROMPT_SUFFIX
 
-  # Add a static hook to examine staged/unstaged changes.
-  vcs_info_hookadd set-message vcs-detect-changes
 }
 
-if [[ "$POWERLEVEL9K_PROMPT_ON_NEWLINE" == true ]]; then
-  PROMPT='╭─%{%f%b%k%}$(build_left_prompt) 
-╰─ '
-  # The right prompt should be on the same line as the first line of the left prompt.
-  # To do so, there is just a quite ugly workaround: Before zsh draws the RPROMPT,
-  # we advise it, to go one line up. At the end of RPROMPT, we advise it to go one
-  # line down. See http://superuser.com/questions/357107/zsh-right-justify-in-ps1
-  RPROMPT_PREFIX='%{'$'\e[1A''%}' # one line up
-  RPROMPT_SUFFIX='%{'$'\e[1B''%}' # one line down
-else
-  PROMPT='%{%f%b%k%}$(build_left_prompt) '
-  RPROMPT_PREFIX=''
-  RPROMPT_SUFFIX=''
-fi
-RPROMPT=$RPROMPT_PREFIX'%{%f%b%k%}$(build_right_prompt)%{$reset_color%}'$RPROMPT_SUFFIX
+powerlevel9k_init "$@"
diff --git a/test-vm/README.md b/test-vm/README.md
new file mode 100644
index 00000000..9f0861e9
--- /dev/null
+++ b/test-vm/README.md
@@ -0,0 +1,25 @@
+# Test-VM for powerlevel9k
+
+In this virtual machine you will find a recent ubuntu with preinstalled ZSH, oh-my-zsh, antigen, prezto and - of course - powerlevel9k. The main use-case is to test the powerlevel9k theme.
+
+## Installation
+
+In order to run this virtual machine, you need [vagrant](https://www.vagrantup.com/) and [VirtualBox](http://www.virtualbox.org/).
+
+## Running
+
+`vagrant` is a quite easy to use command line tool to configure a virtual machine. To fire the machine up, just run `vagrant up`. At the first run, it will install a whole ubuntu. With `vagrant ssh` you can log in into the machine.
+
+## Testing
+
+Once you have SSH'd into the machine, you'll see a plain ZSH. To test the other frameworks, you just have to switch to one of the following users:
+
+  * `vagrant-antigen`
+  * `vagrant-prezto`
+  * `vagrant-omz`
+
+To switch use `sudo -i -H -u <USERNAME>`. `-i` stands for "simulate initial login", `-H` sets the "$HOME" variable to the directory of the user , `-u` for the username. 
+
+All users have `vagrant` as password and are in the /etc/sudoers.
+
+The regular `vagrant` user has a plain ZSH with the powerlevel9k theme.
diff --git a/test-vm/Vagrantfile b/test-vm/Vagrantfile
new file mode 100644
index 00000000..ee53fcdf
--- /dev/null
+++ b/test-vm/Vagrantfile
@@ -0,0 +1,82 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure(2) do |config|
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
+
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://atlas.hashicorp.com/search.
+  config.vm.box = "ubuntu/precise64"
+
+  # Bootstrap
+  config.vm.provision :shell, path: "bootstrap.sh", privileged: false
+  config.vm.provision :shell, path: "plain.sh", privileged: false
+  config.vm.provision :shell, path: "antigen.sh"
+  config.vm.provision :shell, path: "prezto.sh"
+  config.vm.provision :shell, path: "omz.sh"
+
+  # Disable automatic box update checking. If you disable this, then
+  # boxes will only be checked for updates when the user runs
+  # `vagrant box outdated`. This is not recommended.
+  # config.vm.box_check_update = false
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine. In the example below,
+  # accessing "localhost:8080" will access port 80 on the guest machine.
+  # config.vm.network "forwarded_port", guest: 80, host: 8080
+
+  # Create a private network, which allows host-only access to the machine
+  # using a specific IP.
+  # config.vm.network "private_network", ip: "192.168.33.10"
+
+  # Create a public network, which generally matched to bridged network.
+  # Bridged networks make the machine appear as another physical device on
+  # your network.
+  # config.vm.network "public_network"
+
+  # Share an additional folder to the guest VM. The first argument is
+  # the path on the host to the actual folder. The second argument is
+  # the path on the guest to mount the folder. And the optional third
+  # argument is a set of non-required options.
+  config.vm.synced_folder "..", "/vagrant_data"
+
+  # Provider-specific configuration so you can fine-tune various
+  # backing providers for Vagrant. These expose provider-specific options.
+  # Example for VirtualBox:
+  
+  config.vm.provider "virtualbox" do |vb|
+
+     # Change name to "powerlevel9k"
+     vb.name = "powerlevel9k"
+
+     # Display the VirtualBox GUI when booting the machine
+     #vb.gui = true
+  
+     # Customize the amount of memory on the VM:
+     vb.memory = "256"
+  end
+  #
+  # View the documentation for the provider you are using for more
+  # information on available options.
+
+  # Define a Vagrant Push strategy for pushing to Atlas. Other push strategies
+  # such as FTP and Heroku are also available. See the documentation at
+  # https://docs.vagrantup.com/v2/push/atlas.html for more information.
+  # config.push.define "atlas" do |push|
+  #   push.app = "YOUR_ATLAS_USERNAME/YOUR_APPLICATION_NAME"
+  # end
+
+  # Enable provisioning with a shell script. Additional provisioners such as
+  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
+  # documentation for more information about their specific syntax and use.
+  # config.vm.provision "shell", inline: <<-SHELL
+  #   sudo apt-get update
+  #   sudo apt-get install -y apache2
+  # SHELL
+end
diff --git a/test-vm/antigen.sh b/test-vm/antigen.sh
new file mode 100644
index 00000000..0f44c6ca
--- /dev/null
+++ b/test-vm/antigen.sh
@@ -0,0 +1,27 @@
+#!/usr/bin/zsh
+# We need to run this script in ZSH, so that switching user works!
+NEW_USER=vagrant-antigen
+# Create User
+PASSWORD='$6$OgLg9v2Z$Db38Jr9inZG7y8BzL8kqFK23fF5jZ7FU1oiIBLFjNYR9XVX03fwQayMgA6Rm1rzLbXaf.gkZaTWhB9pv5XLq11'
+useradd -p $PASSWORD -g vagrant -s $(which zsh) -m $NEW_USER
+echo "$NEW_USER ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/$NEW_USER
+chmod 440 /etc/sudoers.d/$NEW_USER
+
+(
+        # Change User (See http://unix.stackexchange.com/questions/86778/why-cant-we-execute-a-list-of-commands-as-different-user-without-sudo)
+        USERNAME=$NEW_USER
+        #UID=$(id -u $NEW_USER)
+        #EUID=$(id -u $NEW_USER)
+        HOME=/home/$NEW_USER
+
+        echo "
+source ~/antigen/antigen.zsh\n
+antigen theme /vagrant_data powerlevel9k --no-local-clone\n
+antigen apply
+" > ~/.zshrc
+
+        # install antigen
+        mkdir ~/antigen
+        curl -qL https://raw.githubusercontent.com/zsh-users/antigen/master/antigen.zsh > ~/antigen/antigen.zsh
+        source ~/antigen/antigen.zsh
+)
diff --git a/test-vm/bootstrap.sh b/test-vm/bootstrap.sh
new file mode 100644
index 00000000..9651c4eb
--- /dev/null
+++ b/test-vm/bootstrap.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+#sudo apt-get update
+
+sudo apt-get install -y curl
+sudo apt-get install -y git
+
+sudo apt-get install -y zsh
+sudo chsh -s $(which zsh) vagrant
diff --git a/test-vm/omz.sh b/test-vm/omz.sh
new file mode 100644
index 00000000..953f5c8f
--- /dev/null
+++ b/test-vm/omz.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/zsh
+# We need to run this script in ZSH, so that switching user works!
+NEW_USER=vagrant-omz
+# Create User
+PASSWORD='$6$OgLg9v2Z$Db38Jr9inZG7y8BzL8kqFK23fF5jZ7FU1oiIBLFjNYR9XVX03fwQayMgA6Rm1rzLbXaf.gkZaTWhB9pv5XLq11'
+useradd -p $PASSWORD -g vagrant -s $(which zsh) -m $NEW_USER
+echo "$NEW_USER ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/$NEW_USER
+chmod 440 /etc/sudoers.d/$NEW_USER
+
+(
+        # Change User (See http://unix.stackexchange.com/questions/86778/why-cant-we-execute-a-list-of-commands-as-different-user-without-sudo)
+        USERNAME=$NEW_USER
+        #UID=$(id -u $NEW_USER)
+        #EUID=$(id -u $NEW_USER)
+        HOME=/home/$NEW_USER
+	SHELL=$(which zsh)
+
+        sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
+
+        mkdir -p ~/.oh-my-zsh/custom/themes
+        ln -s /vagrant_data ~/.oh-my-zsh/custom/themes/powerlevel9k
+
+        echo '
+export ZSH=$HOME/.oh-my-zsh
+ZSH_THEME="powerlevel9k/powerlevel9k"
+plugins=(git rake ruby)
+
+source $ZSH/oh-my-zsh.sh
+' > $HOME/.zshrc
+
+)
diff --git a/test-vm/plain.sh b/test-vm/plain.sh
new file mode 100644
index 00000000..9c8445f4
--- /dev/null
+++ b/test-vm/plain.sh
@@ -0,0 +1,3 @@
+#!/usr/bin/zsh
+
+echo 'source /vagrant_data/powerlevel9k.zsh-theme' > ~/.zshrc
diff --git a/test-vm/prezto.sh b/test-vm/prezto.sh
new file mode 100644
index 00000000..af4e7454
--- /dev/null
+++ b/test-vm/prezto.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/zsh
+# We need to run this script in ZSH, so that switching user works!
+NEW_USER=vagrant-prezto
+# Create User
+PASSWORD='$6$OgLg9v2Z$Db38Jr9inZG7y8BzL8kqFK23fF5jZ7FU1oiIBLFjNYR9XVX03fwQayMgA6Rm1rzLbXaf.gkZaTWhB9pv5XLq11'
+useradd -p $PASSWORD -g vagrant -s $(which zsh) -m $NEW_USER
+echo "$NEW_USER ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/$NEW_USER
+chmod 440 /etc/sudoers.d/$NEW_USER
+
+(
+        # Change User (See http://unix.stackexchange.com/questions/86778/why-cant-we-execute-a-list-of-commands-as-different-user-without-sudo)
+        USERNAME=$NEW_USER
+        #UID=$(id -u $NEW_USER)
+        #EUID=$(id -u $NEW_USER)
+        HOME=/home/$NEW_USER
+
+        git clone --recursive https://github.com/sorin-ionescu/prezto.git "${ZDOTDIR:-$HOME}/.zprezto"
+
+        setopt EXTENDED_GLOB
+        for rcfile in "${ZDOTDIR:-$HOME}"/.zprezto/runcoms/^README.md(.N); do
+                ln -s "$rcfile" "${ZDOTDIR:-$HOME}/.${rcfile:t}"
+        done
+
+        ln -s /vagrant_data/powerlevel9k.zsh-theme ~/.zprezto/modules/prompt/functions/prompt_powerlevel9k_setup
+        sed -i "s/theme\ 'sorin'/theme\ 'powerlevel9k'/g" ~/.zpreztorc
+)