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The React Native component's style is usually defined as a static variable along with the component itself. This makes it easy to build self contained components that always look and behave in the same way. On the other hand, it complicates building themeable (or skinnable) components that could have multiple styles that can be customized without touching the component source code. @shoutem/theme is built to address that problem. With themes, you can target specific components in your app and customize them through one file, just like you would do it with CSS on the web.


$ npm install --save @shoutem/theme


All the documentation is available on the Developer portal.


Join our community on Facebook. Also, feel free to ask a question on Stack Overflow using "shoutem" tag.


Use Shoutem UI, set of components which are made to be customizable by Theme, to see how to work with it.

Create new React Native project:

$ react-native init HelloWorld

Install @shoutem/ui and @shoutem/theme and link them in your project:

$ cd HelloWorld
$ npm install --save @shoutem/ui
$ npm install --save @shoutem/theme
$ rnpm link

Now, simply copy the following to the App.js file of your React Native project:

import React, { Component } from 'react';
import { Dimensions } from 'react-native';
import { StyleProvider } from '@shoutem/theme';
import {
} from '@shoutem/ui';

const window = Dimensions.get('window');

const Colors = {
  BACKGROUND: '#ffffff',
  SHADOW: '#000000',

const MEDIUM_GUTTER = 15;

const theme = {
  'shoutem.ui.View': {
    '.h-center': {
      alignItems: 'center',

    '.v-center': {
      justifyContent: 'center',

    '.flexible': {
      flex: 1,

    flexDirection: 'column',

  'shoutem.ui.Card': {
    'shoutem.ui.View.content': {
      'shoutem.ui.Subtitle': {
        marginBottom: MEDIUM_GUTTER,

      flex: 1,
      alignSelf: 'stretch',
      padding: 10,

    width: (180 / 375) * window.width,
    flexDirection: 'column',
    justifyContent: 'center',
    alignItems: 'flex-start',
    backgroundColor: Colors.BACKGROUND,
    borderRadius: 2,
    shadowColor: Colors.SHADOW,
    shadowOpacity: 0.1,
    shadowOffset: { width: 1, height: 1 },

  'shoutem.ui.Image': {
    '.medium-wide': {
      width: (180 / 375) * window.width,
      height: 85,

    flexDirection: 'column',
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: Colors.BACKGROUND,

export default class App extends Component<{}> {
  render() {
    return (
      <StyleProvider style={theme}>
        <View styleName="flexible vertical v-center h-center">
              source={{ uri: '' }}
            <View styleName="content">
              <Subtitle numberOfLines={4}>
                Lady Gaga Sings National Anthem at Super Bowl 50
              <Caption>21 hours ago</Caption>

Finally, run the app!

$ react-native run-ios

UI Toolkit

Shoutem UI is a part of the Shoutem UI Toolkit that enables you to build professionally looking React Native apps with ease.

It consists of three libraries:


The BSD License Copyright (c) 2016-present, Shoutem

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