diff --git a/themes/brainy/README.md b/themes/brainy/README.md
new file mode 100644
index 00000000..7ab40d6e
--- /dev/null
+++ b/themes/brainy/README.md
@@ -0,0 +1,114 @@
+# Brainy theme
+
+Simple colorful terminal prompt theme (inspired by a number of themes).
+
+## Features
+
+### Prompt Segments
+
+- Username & Hostname
+- Current Directory
+- SCM Information
+- Battery Charge
+- Clock
+- Ruby Environment
+- Python Environment
+- Exit Code
+
+### Others
+
+- Indicator for cached `sudo` credential
+- `brainy` command for showing/hiding various prompt segments on-the-fly
+
+## Configuration
+
+Various prompt segments can be shown/hidden or modified according to your choice. There are two ways for doing that:
+
+1. On-the-fly using `brainy` command
+2. Theme Environment Variables
+
+### On-the-fly using `brainy` command
+
+This theme provides a command for showing/hiding prompt segments.
+
+`brainy show <segment>`
+
+`brainy hide <segment>`
+
+Tab-completion for this command is enabled by default.
+
+Configuration specified by this command will only be applied to current and subsequent child shells.
+
+### Theme Environment Variables
+
+This is used for permanent settings that apply to all terminal sessions. You have to define the value of specific theme variables in your `bashrc` (or equivalent) file.
+
+The name of the variables are listed below along with their default values.
+
+#### User Information
+
+Indicator for cached `sudo` credential (see `sudo` manpage for more information):
+
+`THEME_SHOW_SUDO=true`
+
+#### SCM Information
+
+Information about SCM repository status:
+
+`THEME_SHOW_SCM=true`
+
+#### Ruby Environment
+
+Ruby environment version information:
+
+`THEME_SHOW_RUBY=false`
+
+#### Python Environment
+
+Python environment version information:
+
+`THEME_SHOW_PYTHON=false`
+
+#### Clock
+
+`THEME_SHOW_CLOCK=true`
+
+`THEME_CLOCK_COLOR=$bold_cyan`
+
+Format of the clock (see `date` manpage for more information):
+
+`THEME_CLOCK_FORMAT="%H:%M:%S"`
+
+#### Battery Charge
+
+Battery charge percentage:
+
+`THEME_SHOW_BATTERY=false`
+
+#### Exit Code
+
+Exit code of the last command:
+
+`THEME_SHOW_EXITCODE=true`
+
+## Prompt Segments Order
+
+Currently available prompt segments are:
+
+- battery
+- char
+- clock
+- dir
+- exitcode
+- python
+- ruby
+- scm
+- user_info
+
+Three environment variables can be defined to rearrange the segments order. The default values are:
+
+`___BRAINY_TOP_LEFT="user_info dir scm"`
+
+`___BRAINY_TOP_RIGHT="python ruby clock battery"`
+
+`___BRAINY_BOTTOM="exitcode char"`
diff --git a/themes/brainy/brainy.theme.bash b/themes/brainy/brainy.theme.bash
new file mode 100644
index 00000000..7e29b416
--- /dev/null
+++ b/themes/brainy/brainy.theme.bash
@@ -0,0 +1,257 @@
+#!/usr/bin/env bash
+
+# Brainy Bash Prompt
+# by MunifTanjim
+
+____brainy_top_left_parse() {
+	ifs_old="${IFS}"
+	IFS="|"
+	args=( $1 )
+	IFS="${ifs_old}"
+	if [ -n "${args[3]}" ]; then
+		_TOP_LEFT+="${args[2]}${args[3]}"
+	fi
+	_TOP_LEFT+="${args[0]}${args[1]}"
+	if [ -n "${args[4]}" ]; then
+		_TOP_LEFT+="${args[2]}${args[4]}"
+	fi
+	_TOP_LEFT+=" "
+}
+
+____brainy_top_right_parse() {
+	ifs_old="${IFS}"
+	IFS="|"
+	args=( $1 )
+	IFS="${ifs_old}"
+	_TOP_RIGHT+=" "
+	if [ -n "${args[3]}" ]; then
+		_TOP_RIGHT+="${args[2]}${args[3]}"
+	fi
+	_TOP_RIGHT+="${args[0]}${args[1]}"
+	if [ -n "${args[4]}" ]; then
+		_TOP_RIGHT+="${args[2]}${args[4]}"
+	fi
+	__TOP_RIGHT_LEN=$(( __TOP_RIGHT_LEN + ${#args[1]} + ${#args[3]} + ${#args[4]} + 1 ))
+	(( __SEG_AT_RIGHT += 1 ))
+}
+
+____brainy_bottom_parse() {
+	ifs_old="${IFS}"
+	IFS="|"
+	args=( $1 )
+	IFS="${ifs_old}"
+	_BOTTOM+="${args[0]}${args[1]}"
+	[ ${#args[1]} -gt 0 ] && _BOTTOM+=" "
+}
+
+____brainy_top() {
+	_TOP_LEFT=""
+	_TOP_RIGHT=""
+	__TOP_RIGHT_LEN=0
+	__SEG_AT_RIGHT=0
+
+	for seg in ${___BRAINY_TOP_LEFT}; do
+		info="$(___brainy_prompt_"${seg}")"
+		[ -n "${info}" ] && ____brainy_top_left_parse "${info}"
+	done
+
+	___cursor_right="\033[500C"
+	_TOP_LEFT+="${___cursor_right}"
+
+	for seg in ${___BRAINY_TOP_RIGHT}; do
+		info="$(___brainy_prompt_"${seg}")"
+		[ -n "${info}" ] && ____brainy_top_right_parse "${info}"
+	done
+
+	[ $__TOP_RIGHT_LEN -gt 0 ] && __TOP_RIGHT_LEN=$(( __TOP_RIGHT_LEN - 1 ))
+	___cursor_adjust="\033[${__TOP_RIGHT_LEN}D"
+	_TOP_LEFT+="${___cursor_adjust}"
+
+	printf "%s%s" "${_TOP_LEFT}" "${_TOP_RIGHT}"
+}
+
+____brainy_bottom() {
+	_BOTTOM=""
+	for seg in $___BRAINY_BOTTOM; do
+		info="$(___brainy_prompt_"${seg}")"
+		[ -n "${info}" ] && ____brainy_bottom_parse "${info}"
+	done
+	printf "\n%s" "${_BOTTOM}"
+}
+
+___brainy_prompt_user_info() {
+	color=$bold_blue
+	if [ "${THEME_SHOW_SUDO}" == "true" ]; then
+		if [ $(sudo -n id -u 2>&1 | grep 0) ]; then
+			color=$bold_red
+		fi
+	fi
+	info="\u@\H"
+	printf "%s|%s" "${color}" "${info}"
+}
+
+___brainy_prompt_dir() {
+	color=$bold_yellow
+	box="[|]"
+	info="\w"
+	printf "%s|%s|%s|%s" "${color}" "${info}" "${bold_white}" "${box}"
+}
+
+___brainy_prompt_scm() {
+	[ "${THEME_SHOW_SCM}" == "false" ] && return
+	color=$bold_green
+	box="$(scm_char) "
+	info="$(scm_prompt_info)"
+	printf "%s|%s|%s|%s" "${color}" "${info}" "${bold_white}" "${box}"
+}
+
+___brainy_prompt_python() {
+	[ "${THEME_SHOW_PYTHON}" == "false" ] && return
+	color=$bold_yellow
+	box="[|]"
+	info="$(python_version_prompt)"
+	printf "%s|%s|%s|%s" "${color}" "${info}" "${bold_blue}" "${box}"
+}
+
+___brainy_prompt_ruby() {
+	[ "${THEME_SHOW_RUBY}" == "false" ] && return
+	color=${bold_white}
+	box="[|]"
+	info="$(ruby_version_prompt)"
+	printf "%s|%s|%s|%s" "${color}" "${info}" "${bold_red}" "${box}"
+}
+
+___brainy_prompt_clock() {
+	[ "${THEME_SHOW_CLOCK}" == "false" ] && return
+	color=$THEME_CLOCK_COLOR
+	box="[|]"
+	info="$(date +"${THEME_CLOCK_FORMAT}")"
+	printf "%s|%s|%s|%s" "${color}" "${info}" "${bold_white}" "${box}"
+}
+
+___brainy_prompt_battery() {
+	[ "${THEME_SHOW_BATTERY}" == "false" ] && return
+	info=$(battery_percentage)
+	color=$bold_green
+	if [ "$info" -lt 50 ]; then
+		color=$bold_yellow
+	elif [ "$info" -lt 25 ]; then
+		color=$bold_red
+	fi
+	box="[|]"
+	printf "%s|%s|%s|%s" "${color}" "${info}" "${bold_white}" "${box}"
+}
+
+___brainy_prompt_exitcode() {
+	[ "${THEME_SHOW_EXITCODE}" == "false" ] && return
+	color=$bold_cyan
+	[ "$exitcode" -ne 0 ] && printf "%s|%s" "${color}" "${exitcode}"
+}
+
+___brainy_prompt_char() {
+	color=$bold_white
+	prompt_char="${__BRAINY_PROMPT_CHAR_PS1}"
+	printf "%s|%s" "${color}" "${prompt_char}"
+}
+
+__brainy_show() {
+  typeset _seg=${1:-}
+	shift
+	export THEME_SHOW_${_seg}=true
+}
+
+__brainy_hide() {
+	typeset _seg=${1:-}
+	shift
+	export THEME_SHOW_${_seg}=false
+}
+
+__brainy_ps1() {
+	printf "%s%s%s" "$(____brainy_top)" "$(____brainy_bottom)" "${normal}"
+}
+
+__brainy_ps2() {
+	color=$bold_white
+	printf "%s%s  %s" "${color}" "${__BRAINY_PROMPT_CHAR_PS2}" "${normal}"
+}
+
+_brainy_prompt() {
+    exitcode="$?"
+
+    PS1="$(__brainy_ps1)"
+    PS2="$(__brainy_ps2)"
+}
+
+_brainy_completion() {
+	local cur _action actions segments
+	COMPREPLY=()
+	cur="${COMP_WORDS[COMP_CWORD]}"
+	_action="${COMP_WORDS[1]}"
+	actions="show hide"
+	segments="battery clock exitcode python ruby scm sudo"
+	case "${_action}" in
+		show)
+			COMPREPLY=( $(compgen -W "${segments}" -- "${cur}") )
+			return 0
+			;;
+		hide)
+			COMPREPLY=( $(compgen -W "${segments}" -- "${cur}") )
+			return 0
+			;;
+	esac
+
+	COMPREPLY=( $(compgen -W "${actions}" -- "${cur}") )
+	return 0
+}
+
+brainy() {
+	typeset action=${1:-}
+	shift
+	typeset segs=${*:-}
+	typeset func
+	case $action in
+		show)
+			func=__brainy_show;;
+		hide)
+			func=__brainy_hide;;
+	esac
+	for seg in ${segs}; do
+		seg=$(printf "%s" "${seg}" | tr '[:lower:]' '[:upper:]')
+		$func "${seg}"
+	done
+}
+
+export SCM_THEME_PROMPT_PREFIX=""
+export SCM_THEME_PROMPT_SUFFIX=""
+
+export RBENV_THEME_PROMPT_PREFIX=""
+export RBENV_THEME_PROMPT_SUFFIX=""
+export RBFU_THEME_PROMPT_PREFIX=""
+export RBFU_THEME_PROMPT_SUFFIX=""
+export RVM_THEME_PROMPT_PREFIX=""
+export RVM_THEME_PROMPT_SUFFIX=""
+
+export SCM_THEME_PROMPT_DIRTY=" ${bold_red}✗${normal}"
+export SCM_THEME_PROMPT_CLEAN=" ${bold_green}✓${normal}"
+
+THEME_SHOW_SUDO=${THEME_SHOW_SUDO:-"true"}
+THEME_SHOW_SCM=${THEME_SHOW_SCM:-"true"}
+THEME_SHOW_RUBY=${THEME_SHOW_RUBY:-"false"}
+THEME_SHOW_PYTHON=${THEME_SHOW_PYTHON:-"false"}
+THEME_SHOW_CLOCK=${THEME_SHOW_CLOCK:-"true"}
+THEME_SHOW_BATTERY=${THEME_SHOW_BATTERY:-"false"}
+THEME_SHOW_EXITCODE=${THEME_SHOW_EXITCODE:-"true"}
+
+THEME_CLOCK_COLOR=${THEME_CLOCK_COLOR:-"$bold_cyan"}
+THEME_CLOCK_FORMAT=${THEME_CLOCK_FORMAT:-"%H:%M:%S"}
+
+__BRAINY_PROMPT_CHAR_PS1=${THEME_PROMPT_CHAR_PS1:-">"}
+__BRAINY_PROMPT_CHAR_PS2=${THEME_PROMPT_CHAR_PS2:-"\\"}
+
+___BRAINY_TOP_LEFT=${___BRAINY_TOP_LEFT:-"user_info dir scm"}
+___BRAINY_TOP_RIGHT=${___BRAINY_TOP_RIGHT:-"python ruby clock battery"}
+___BRAINY_BOTTOM=${___BRAINY_BOTTOM:-"exitcode char"}
+
+complete -F _brainy_completion brainy
+
+safe_append_prompt_command _brainy_prompt