diff --git a/README.md b/README.md
index 1bbaa02..652e8df 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@
 </p>
 <p align="center">
   <a href="https://travis-ci.com/kremalicious/blowfish"><img src="https://travis-ci.com/kremalicious/blowfish.svg?branch=master" /></a>
+  <a href="https://codeclimate.com/github/kremalicious/blowfish/maintainability"><img src="https://api.codeclimate.com/v1/badges/beeab7902ee5307fc0a1/maintainability" /></a>
   <a href="https://greenkeeper.io/"><img src="https://badges.greenkeeper.io/kremalicious/blowfish.svg" /></a>
 </p>
 
diff --git a/src/app/components/Ticker.jsx b/src/app/components/Ticker.jsx
index 5c68820..88ea657 100644
--- a/src/app/components/Ticker.jsx
+++ b/src/app/components/Ticker.jsx
@@ -10,14 +10,26 @@ const Item = posed.div(fadeIn)
 export default class Ticker extends PureComponent {
   static contextType = AppContext
 
+  items = activeStyle =>
+    Object.keys(this.context.prices).map((key, i) => (
+      <Item key={i} className="number-unit">
+        <button
+          className="label label--price"
+          onClick={() => this.context.toggleCurrencies(key)}
+          disabled={this.context.needsConfig}
+          style={
+            key === this.context.currency && !this.context.needsConfig
+              ? activeStyle
+              : {}
+          }
+        >
+          {cryptoFormatter(this.context.prices[key], key)}
+        </button>
+      </Item>
+    ))
+
   render() {
-    const {
-      toggleCurrencies,
-      needsConfig,
-      currency,
-      prices,
-      accentColor
-    } = this.context
+    const { accentColor } = this.context
 
     const activeStyle = {
       backgroundColor: accentColor,
@@ -27,20 +39,7 @@ export default class Ticker extends PureComponent {
 
     return (
       <footer className="number-unit-wrap ticker" {...this.props}>
-        <PoseGroup animateOnMount>
-          {Object.keys(prices).map((key, i) => (
-            <Item key={i} className="number-unit">
-              <button
-                className="label label--price"
-                onClick={() => toggleCurrencies(key)}
-                disabled={needsConfig}
-                style={key === currency && !needsConfig ? activeStyle : {}}
-              >
-                {cryptoFormatter(prices[key], key)}
-              </button>
-            </Item>
-          ))}
-        </PoseGroup>
+        <PoseGroup animateOnMount>{this.items(activeStyle)}</PoseGroup>
       </footer>
     )
   }
diff --git a/src/app/screens/Preferences.jsx b/src/app/screens/Preferences.jsx
deleted file mode 100644
index 16e8193..0000000
--- a/src/app/screens/Preferences.jsx
+++ /dev/null
@@ -1,130 +0,0 @@
-import React, { PureComponent } from 'react'
-import { Link } from '@reach/router'
-import Store from 'electron-store'
-import Blockies from 'react-blockies'
-import ethereum_address from 'ethereum-address'
-import posed, { PoseGroup } from 'react-pose'
-import { AppContext } from '../store/createContext'
-import './Preferences.css'
-import { fadeIn } from '../components/Animations'
-
-const Item = posed.li(fadeIn)
-
-export default class Preferences extends PureComponent {
-  static contextType = AppContext
-
-  store = new Store()
-
-  state = { accounts: [], input: '', error: '' }
-
-  componentDidMount() {
-    if (this.store.has('accounts')) {
-      this.setState({ accounts: this.store.get('accounts') })
-    }
-  }
-
-  handleInputChange = e => {
-    this.setState({ input: e.target.value })
-  }
-
-  handleSave = e => {
-    e.preventDefault()
-
-    const { accounts, input } = this.state
-
-    const isEmpty = input === ''
-    const isDuplicate = accounts.includes(input)
-    const isAddress = ethereum_address.isAddress(input)
-
-    if (isEmpty) {
-      this.setState({ error: 'Please enter an address.' })
-      return
-    } else if (isDuplicate) {
-      this.setState({ error: 'Address already added. Try another one.' })
-      return
-    } else if (!isAddress) {
-      this.setState({ error: 'Not an Ethereum address. Try another one.' })
-      return
-    } else {
-      const joined = [...accounts, input]
-
-      this.store.set('accounts', joined)
-      this.setState({ accounts: joined, input: '', error: '' })
-      this.context.setBalances()
-    }
-  }
-
-  handleDelete = (e, account) => {
-    e.preventDefault()
-
-    let array = this.state.accounts
-    array = array.filter(item => account !== item)
-
-    const index = array.indexOf(account)
-    if (index > -1) {
-      array.splice(index, 1)
-    }
-
-    this.store.set('accounts', array)
-    this.setState({ accounts: array })
-    this.context.setBalances()
-  }
-
-  render() {
-    const { accounts, input, error } = this.state
-
-    return (
-      <div className="preferences">
-        <h1 className="preferences__title">Preferences</h1>{' '}
-        <Link className="preferences__close" title="Close Preferences" to="/">
-          &times;
-        </Link>
-        <div className="preference box">
-          <h2 className="preference__title">Accounts</h2>
-          <p className="preference__help">
-            Add Ethereum account addresses holding Ocean Tokens.
-          </p>
-          <ul className="preference__list">
-            <PoseGroup>
-              {accounts &&
-                accounts.map(account => (
-                  <Item key={account}>
-                    <div>
-                      <Blockies seed={account} size={10} scale={3} />
-                      {account}
-                    </div>
-
-                    <button
-                      className="delete"
-                      onClick={e => this.handleDelete(e, account)}
-                      title="Remove account"
-                    >
-                      &times;
-                    </button>
-                  </Item>
-                ))}
-            </PoseGroup>
-            <li>
-              <input
-                type="text"
-                placeholder="0xxxxxxxx"
-                value={input}
-                onChange={this.handleInputChange}
-                className="preference__input"
-              />
-
-              <button
-                className="preference__input__add"
-                onClick={e => this.handleSave(e)}
-                style={{ color: this.context.accentColor }}
-              >
-                Add
-              </button>
-            </li>
-          </ul>
-          {error !== '' && <div className="preference__error">{error}</div>}
-        </div>
-      </div>
-    )
-  }
-}
diff --git a/src/app/screens/Preferences/Accounts.jsx b/src/app/screens/Preferences/Accounts.jsx
new file mode 100644
index 0000000..ee9913a
--- /dev/null
+++ b/src/app/screens/Preferences/Accounts.jsx
@@ -0,0 +1,149 @@
+import React, { PureComponent } from 'react'
+import PropTypes from 'prop-types'
+import Blockies from 'react-blockies'
+import posed, { PoseGroup } from 'react-pose'
+import Store from 'electron-store'
+import ethereum_address from 'ethereum-address'
+import { AppContext } from '../../store/createContext'
+import { fadeIn } from '../../components/Animations'
+
+const Item = posed.li(fadeIn)
+
+const AccountsList = ({ accounts, handleDelete }) => (
+  <PoseGroup>
+    {accounts.map(account => (
+      <Item key={account}>
+        <div>
+          <Blockies seed={account} size={10} scale={3} />
+          {account}
+        </div>
+
+        <button
+          className="delete"
+          onClick={e => handleDelete(e, account)}
+          title="Remove account"
+        >
+          &times;
+        </button>
+      </Item>
+    ))}
+  </PoseGroup>
+)
+
+AccountsList.propTypes = {
+  accounts: PropTypes.array.isRequired,
+  handleDelete: PropTypes.func.isRequired
+}
+
+const AccountNew = ({ input, handleInputChange, handleSave, accentColor }) => (
+  <li>
+    <input
+      type="text"
+      placeholder="0xxxxxxxx"
+      value={input}
+      onChange={e => handleInputChange(e)}
+      className="preference__input"
+    />
+
+    <button
+      className="preference__input__add"
+      onClick={e => handleSave(e)}
+      style={{ color: accentColor }}
+    >
+      Add
+    </button>
+  </li>
+)
+
+AccountNew.propTypes = {
+  input: PropTypes.string.isRequired,
+  handleInputChange: PropTypes.func.isRequired,
+  handleSave: PropTypes.func.isRequired,
+  accentColor: PropTypes.string.isRequired
+}
+
+export default class Accounts extends PureComponent {
+  static contextType = AppContext
+
+  store = new Store()
+
+  state = { accounts: [], input: '', error: '' }
+
+  componentDidMount() {
+    if (this.store.has('accounts')) {
+      this.setState({ accounts: this.store.get('accounts') })
+    }
+  }
+
+  handleInputChange = e => {
+    this.setState({ input: e.target.value })
+  }
+
+  handleSave = e => {
+    e.preventDefault()
+
+    const { accounts, input } = this.state
+
+    const isEmpty = input === ''
+    const isDuplicate = accounts.includes(input)
+    const isAddress = ethereum_address.isAddress(input)
+
+    if (isEmpty) {
+      this.setState({ error: 'Please enter an address.' })
+      return
+    } else if (isDuplicate) {
+      this.setState({ error: 'Address already added. Try another one.' })
+      return
+    } else if (!isAddress) {
+      this.setState({ error: 'Not an Ethereum address. Try another one.' })
+      return
+    } else {
+      const joined = [...accounts, input]
+
+      this.store.set('accounts', joined)
+      this.setState({ accounts: joined, input: '', error: '' })
+      this.context.setBalances()
+    }
+  }
+
+  handleDelete = (e, account) => {
+    e.preventDefault()
+
+    let array = this.state.accounts
+    array = array.filter(item => account !== item)
+
+    const index = array.indexOf(account)
+    if (index > -1) {
+      array.splice(index, 1)
+    }
+
+    this.store.set('accounts', array)
+    this.setState({ accounts: array })
+    this.context.setBalances()
+  }
+
+  render() {
+    const { accentColor } = this.context
+    const { accounts, input, error } = this.state
+
+    return (
+      <div className="preference box">
+        <h2 className="preference__title">Accounts</h2>
+        <p className="preference__help">
+          Add Ethereum account addresses holding Ocean Tokens.
+        </p>
+        <ul className="preference__list">
+          <AccountsList accounts={accounts} handleDelete={this.handleDelete} />
+
+          <AccountNew
+            input={input}
+            handleInputChange={this.handleInputChange}
+            accentColor={accentColor}
+            handleSave={this.handleSave}
+          />
+        </ul>
+        {error !== '' && <div className="preference__error">{error}</div>}
+      </div>
+    )
+  }
+}
diff --git a/src/app/screens/Preferences.css b/src/app/screens/Preferences/index.css
similarity index 100%
rename from src/app/screens/Preferences.css
rename to src/app/screens/Preferences/index.css
diff --git a/src/app/screens/Preferences/index.jsx b/src/app/screens/Preferences/index.jsx
new file mode 100644
index 0000000..14da3c6
--- /dev/null
+++ b/src/app/screens/Preferences/index.jsx
@@ -0,0 +1,20 @@
+import React, { PureComponent } from 'react'
+import { Link } from '@reach/router'
+
+import './index.css'
+
+import Accounts from './Accounts'
+
+export default class Preferences extends PureComponent {
+  render() {
+    return (
+      <div className="preferences">
+        <h1 className="preferences__title">Preferences</h1>{' '}
+        <Link className="preferences__close" title="Close Preferences" to="/">
+          &times;
+        </Link>
+        <Accounts />
+      </div>
+    )
+  }
+}
diff --git a/src/main.js b/src/main.js
index 0e97786..7b7058c 100644
--- a/src/main.js
+++ b/src/main.js
@@ -20,6 +20,52 @@ if (
 const width = 620
 const height = 440
 
+const installDevTools = async mainWindow => {
+  if (isDev) {
+    const {
+      default: installExtension,
+      REACT_DEVELOPER_TOOLS
+    } = require('electron-devtools-installer')
+
+    try {
+      const name = await installExtension(REACT_DEVELOPER_TOOLS)
+      console.log(`Added Extension: ${name}`) // eslint-disable-line no-console
+
+      mainWindow.webContents.on('devtools-opened', () =>
+        mainWindow.setSize(1024, 420, true)
+      )
+      mainWindow.webContents.on('devtools-closed', () =>
+        mainWindow.setSize(width, height, true)
+      )
+    } catch (error) {
+      console.log('An error occurred: ', error) // eslint-disable-line no-console
+    }
+  }
+}
+
+const createWindowEvents = mainWindow => {
+  mainWindow.on('enter-full-screen', () =>
+    mainWindow.webContents.executeJavaScript(
+      'document.getElementsByTagName(\'html\')[0].classList.add(\'fullscreen\')'
+    )
+  )
+  mainWindow.on('leave-full-screen', () =>
+    mainWindow.webContents.executeJavaScript(
+      'document.getElementsByTagName(\'html\')[0].classList.remove(\'fullscreen\')'
+    )
+  )
+  mainWindow.on('blur', () =>
+    mainWindow.webContents.executeJavaScript(
+      'document.getElementsByTagName(\'html\')[0].classList.add(\'blur\')'
+    )
+  )
+  mainWindow.on('focus', () =>
+    mainWindow.webContents.executeJavaScript(
+      'document.getElementsByTagName(\'html\')[0].classList.remove(\'blur\')'
+    )
+  )
+}
+
 const createWindow = async () => {
   const isDarkMode = systemPreferences.isDarkMode()
 
@@ -47,19 +93,8 @@ const createWindow = async () => {
       : `file://${path.join(__dirname, '../build/index.html')}`
   )
 
-  if (isDev) {
-    const {
-      default: installExtension,
-      REACT_DEVELOPER_TOOLS
-    } = require('electron-devtools-installer')
-
-    try {
-      const name = await installExtension(REACT_DEVELOPER_TOOLS)
-      console.log(`Added Extension: ${name}`) // eslint-disable-line no-console
-    } catch (error) {
-      console.log('An error occurred: ', error) // eslint-disable-line no-console
-    }
-  }
+  createWindowEvents(mainWindow)
+  installDevTools(mainWindow)
 
   mainWindow.once('ready-to-show', () => {
     mainWindow.show()
@@ -70,49 +105,10 @@ const createWindow = async () => {
     mainWindow = null
   })
 
-  //
-  // Events
-  //
-  mainWindow.on('enter-full-screen', () => {
-    mainWindow.webContents.executeJavaScript(
-      'document.getElementsByTagName(\'html\')[0].classList.add(\'fullscreen\')'
-    )
-  })
-
-  mainWindow.on('leave-full-screen', () => {
-    mainWindow.webContents.executeJavaScript(
-      'document.getElementsByTagName(\'html\')[0].classList.remove(\'fullscreen\')'
-    )
-  })
-
-  mainWindow.on('blur', () => {
-    mainWindow.webContents.executeJavaScript(
-      'document.getElementsByTagName(\'html\')[0].classList.add(\'blur\')'
-    )
-  })
-
-  mainWindow.on('focus', () => {
-    mainWindow.webContents.executeJavaScript(
-      'document.getElementsByTagName(\'html\')[0].classList.remove(\'blur\')'
-    )
-  })
-
-  // Make window bigger automatically when devtools are opened
-  mainWindow.webContents.on('devtools-opened', () => {
-    mainWindow.setSize(1024, 420, true)
-  })
-
-  mainWindow.webContents.on('devtools-closed', () => {
-    mainWindow.setSize(width, height, true)
-  })
-
   // Load menubar
   buildMenu(mainWindow)
-
   // Load touchbar
-  if (process.platform === 'darwin') {
-    touchBarWrapper(mainWindow)
-  }
+  process.platform === 'darwin' && touchBarWrapper(mainWindow)
 }
 
 app.on('ready', () => {