Themes

Themes allow you to change the colors and fonts of various components provided by React Navigation. You can use themes to:

• Customize the colors and fonts to match your brand
• Provide light and dark themes based on the time of the day or user preference

Basic usage

To pass a custom theme, you can pass the theme prop to the navigation container.

import * as React from 'react';
import { NavigationContainer, DefaultTheme } from '@react-navigation/native';

const MyTheme = {
  ...DefaultTheme,
  colors: {
    ...DefaultTheme.colors,
    primary: 'rgb(255, 45, 85)',
  },
};

export default function App() {
  return (
    <NavigationContainer theme={MyTheme}>{/* content */}</NavigationContainer>
  );
}

You can change the theme prop dynamically and all the components will automatically update to reflect the new theme. If you haven't provided a theme prop, the default theme will be used.

Properties

A theme is a JS object containing a list of colors to use. It contains the following properties:

• dark (boolean): Whether this is a dark theme or a light theme
• colors (object): Various colors used by react navigation components:
  • primary (string): The primary color of the app used to tint various elements. Usually you'll want to use your brand color for this.
  • background (string): The color of various backgrounds, such as the background color for the screens.
  • card (string): The background color of card-like elements, such as headers, tab bars etc.
  • text (string): The text color of various elements.
  • border (string): The color of borders, e.g. header border, tab bar border etc.
  • notification (string): The color of notifications and badge (e.g. badge in bottom tabs).
• fonts (object): Various fonts used by react navigation components:
  • regular (object): Style object for the primary font used in the app.
  • medium (object): Style object for the semi-bold variant of the primary font.
  • bold (object): Style object for the bold variant of the primary font.
  • heavy (object): Style object for the extra-bold variant of the primary font.

The style objects for fonts contain the following properties:

• fontFamily (string): The name of the font family (or font stack on Web) to use, e.g. Roboto or Helvetica Neue. The system fonts are used by default.
• fontWeight (string): The font weight to use. Valid values are normal, bold, 100, 200, 300, 400, 500, 600, 700, 800, 900.

When creating a custom theme, you will need to provide all of these properties.

Example theme:

const WEB_FONT_STACK =
  'system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"';

const MyTheme = {
  dark: false,
  colors: {
    primary: 'rgb(255, 45, 85)',
    background: 'rgb(242, 242, 242)',
    card: 'rgb(255, 255, 255)',
    text: 'rgb(28, 28, 30)',
    border: 'rgb(199, 199, 204)',
    notification: 'rgb(255, 69, 58)',
  },
  fonts: Platform.select({
    web: {
      regular: {
        fontFamily: WEB_FONT_STACK,
        fontWeight: '400',
      },
      medium: {
        fontFamily: WEB_FONT_STACK,
        fontWeight: '500',
      },
      bold: {
        fontFamily: WEB_FONT_STACK,
        fontWeight: '600',
      },
      heavy: {
        fontFamily: WEB_FONT_STACK,
        fontWeight: '700',
      },
    },
    ios: {
      regular: {
        fontFamily: 'System',
        fontWeight: '400',
      },
      medium: {
        fontFamily: 'System',
        fontWeight: '500',
      },
      bold: {
        fontFamily: 'System',
        fontWeight: '600',
      },
      heavy: {
        fontFamily: 'System',
        fontWeight: '700',
      },
    },
    default: {
      regular: {
        fontFamily: 'sans-serif',
        fontWeight: 'normal',
      },
      medium: {
        fontFamily: 'sans-serif-medium',
        fontWeight: 'normal',
      },
      bold: {
        fontFamily: 'sans-serif',
        fontWeight: '600',
      },
      heavy: {
        fontFamily: 'sans-serif',
        fontWeight: '700',
      },
    },
  }),
};

Providing a theme will take care of styling of all the official navigators. React Navigation also provides several tools to help you make your customizations of those navigators and the screens within the navigators can use the theme too.

Built-in themes

As operating systems add built-in support for light and dark modes, supporting dark mode is less about keeping hip to trends and more about conforming to the average user expectations for how apps should work. In order to provide support for light and dark mode in a way that is reasonably consistent with the OS defaults, these themes are built in to React Navigation.

You can import the default and dark themes like so:

import { DefaultTheme, DarkTheme } from '@react-navigation/native';

Using the operating system preferences

On iOS 13+ and Android 10+, you can get user's preferred color scheme ('dark' or 'light') with the (Appearance API).

import { useColorScheme } from 'react-native';
import {
  NavigationContainer,
  DefaultTheme,
  DarkTheme,
} from '@react-navigation/native';

export default () => {
  const scheme = useColorScheme();

  return (
    <NavigationContainer theme={scheme === 'dark' ? DarkTheme : DefaultTheme}>
      {/* content */}
    </NavigationContainer>
  );
};

Using the current theme in your own components

To gain access to the theme in any component that is rendered inside the navigation container:, you can use the useTheme hook. It returns the theme object:

import * as React from 'react';
import { TouchableOpacity, Text } from 'react-native';
import { useTheme } from '@react-navigation/native';

// Black background and white text in light theme, inverted on dark theme
function MyButton() {
  const { colors } = useTheme();

  return (
    <TouchableOpacity style={{ backgroundColor: colors.card }}>
      <Text style={{ color: colors.text }}>Button!</Text>
    </TouchableOpacity>
  );
}