Import rebass components explictly

src/layers/background.jsx

@@ -1,6 +1,6 @@
 import React from 'react'
 import Immutable from 'immutable'
-import { Input } from 'rebass'
+import Input from 'rebass/dist/Input'
 import { PropertyGroup } from '../fields/spec'
 import PureRenderMixin from 'react-addons-pure-render-mixin';
 

src/layers/editor.jsx

@@ -1,12 +1,15 @@
 import React from 'react'
 import Immutable from 'immutable'
-import { Toolbar, NavItem, Space} from 'rebass'
-import Collapse from 'react-collapse'
 
+import Toolbar from 'rebass/dist/Toolbar'
+import NavItem from 'rebass/dist/NavItem'
+import Space from 'rebass/dist/Space'
+
+import Collapse from 'react-collapse'
 import theme from '../theme.js'
 import FillLayer from './fill.jsx'
 import LineLayer from './line.jsx'
-import SymbolLayer from './line.jsx'
+import SymbolLayer from './symbol.jsx'
 import BackgroundLayer from './background.jsx'
 
 import MdVisibility from 'react-icons/lib/md/visibility'

src/layers/line.jsx

@@ -1,6 +1,7 @@
 import React from 'react'
 import Immutable from 'immutable'
 import { PropertyGroup } from '../fields/spec'
+import PureRenderMixin from 'react-addons-pure-render-mixin';
 
 export default class LineLayer extends React.Component {
 	static propTypes = {
@@ -9,6 +10,11 @@ export default class LineLayer extends React.Component {
     onLayoutChanged: React.PropTypes.func.isRequired,
   }
 
+	constructor(props) {
+		super(props);
+		this.shouldComponentUpdate = PureRenderMixin.shouldComponentUpdate.bind(this);
+	}
+
 	render() {
 		return <div>
 			<PropertyGroup

src/layers/list.jsx

@@ -1,6 +1,11 @@
 import React from 'react'
 import Immutable from 'immutable'
-import { Heading, Toolbar, NavItem, Space} from 'rebass'
+
+import Heading from 'rebass/dist/Heading'
+import Toolbar from 'rebass/dist/Toolbar'
+import NavItem from 'rebass/dist/NavItem'
+import Space from 'rebass/dist/Space'
+
 import { LayerEditor } from './editor.jsx'
 import scrollbars from '../scrollbars.scss'
 import PureRenderMixin from 'react-addons-pure-render-mixin';

src/layers/symbol.jsx

@@ -1,4 +1,7 @@
 import React from 'react'
+import Immutable from 'immutable'
+import PureRenderMixin from 'react-addons-pure-render-mixin';
+import { PropertyGroup } from '../fields/spec'
 
 export default class SymbolLayer extends React.Component {
 	static propTypes = {