Configuration Settings

There are several configuration settings that affect all UI5 Web Components globally.

Setting Values Default value Description
theme sap_fiori_3, sap_fiori_3_dark, sap_fiori_3_hcb, sap_fiori_3_hcw, sap_belize, sap_belize_hcb, sap_belize_hcw sap_fiori_3 Visual theme
language en, de, es, etc… en Language to be used for translatable texts
animationMode full, basic, minimal, none full Defines different animation scenarios or levels
calendarType Gregorian, Islamic, Buddhist, Japanese, Persian Gregorian Default calendar type for date-related Web Components
noConflict true, false false When set to true, all events will be fired with a “ui5-“ prefix only
formatSettings See the Format settings section below Empty object Allows to override locale-specific configuration
fetchDefaultLanguage true, false false The default language is inlined at build time and will be used. Change this to true if you want the i18n to be always fetched from the network even for the default language.

Content Density

UI5 Web Components contain different content densities for certain controls that allow your app to adapt to the device in question. Thus you can display larger controls for touch-enabled devices, and a smaller more compact design for devices that are operated by mouse. Cozy size is the default density for all components. Compact size could be set by adding a class ui5-content-density-compact to an HTML element. It cascades all the way down and enforces compact density (smaller margins/paddings, smaller touch areas, etc).


The theme setting values above are the technical names of our themes.

  • The sap_fiori_3 is known as Quartz Light and it`s the default theme.
  • The sap_fiori_3_dark is known as Quartz Dark.
  • The sap_fiori_3_hcb is known as Quartz High Contrast Black.
  • The sap_fiori_3_hcw is known as Quartz High Contrast White.
  • The sap_belize is known as Belize.
  • The sap_belize_hcb is known as High Contrast Black.
  • The sap_belize_hcw is known as High Contrast White.


Deprecated as of 1.0.0-rc.8

For RTL mode, just set the HTML attribute dir to rtl on the body, html or any other relevant region of your application.

The RTL configuration setting should not be used by applications. It is only internally used for specific integration scenarios.

Note: Whenever you change dir dynamically, make sure you call the applyDirection method to re-render the RTL-aware components.


import applyDirection from "@ui5/webcomponents-base/dist/locale/applyDirection.js";

document.body.dir = "rtl";

Animation Mode

Animation modes allow to specify different animation scenarios or levels.

  • When full, all animations run unrestricted.
  • When basic, more light-weight set of animations would run.
  • When minimal, animations of fundamental functionalities are included.
  • When none, all animations are completely suspended.

Please, note that each component determines which animations would run for a specific mode.

No Conflict

By default, UI5 Web Components fire all custom events twice - once with the documented name (e.g. change), and once more with a ui5- prefix (e.g. ui5-change). For example, when the ui5-switch is toggled, it fires a change event, but also a ui5-change event.

The noConflict configuration setting allows certain control over this behavior:

  • When false (default value), all custom events are fired with and without the ui5- prefix.
  • When true, all custom events are fired with the ui5- prefix only. This is handy, for example, if the name of an event happens to collide with the name of an event provided by a third-party library.
  • When an object is supplied, just the specified events will be fired with the ui5- prefix only. All other events will be fired normally - once with the prefix, and once without it. The format of this object is as follows:
      "events": ["selection-change", "header-click"]

    Please, note that other keys may be added to this object in the future for the purpose of name conflict resolution.

In the above example, only the selection-change and header-click events will be fired with a prefix. You can still use them by listening to ui5-selection-change and ui5-header-click, but the names selection-change and header-click will be free for use by other UI components and libraries without name collision.

Format Settings

For example, to force the first day of week to Sunday, no matter the locale:

	"formatSettings": {
		"firstDayOfWeek": 0
Setting Values Default value Description
firstDayOfWeek 0 (Sunday) through 6 (Saturday) Depends on locale When set, overrides the locale’s default value

Fetching the Default Language

All texts used by components are inlined during build time so that components have the normal look and feel when prototyping. The inlined text is decided at build time (en unless configured otherwise).

Since the default language is inlined, it makes no sense to fetch it again from the network along with the normal assets for other locales, so the default behavior is to use the inlined text.

If, for some reason it is necessary to fetch the default language text from the network as well, use this setting.


<script data-ui5-config type="application/json">
	"fetchDefaultLanguage": true

Configuration Script

In order to provide configuration settings, include the following <script> element in your HTML page:

<script data-ui5-config type="application/json">
	"language": "ja",
	"calendarType": "Japanese",
	"formatSettings": {
		"firstDayOfWeek": 0
	"theme": "sap_belize_hcb",
	"noConflict": {
		"events": ["selection-change", "header-click"]

Provide the desired options in the JSON object, as shown in the example.

Configuration Module Imports

The configuration script is used to set the initial configuration in a declarative manner. However, reading/modifying the configuration reliably can only be done programmatically.

To do so, please import the desired functionality from the respective "@ui5/webcomponents-base/dist/config/" module.

import { getTheme, setTheme } from "@ui5/webcomponents-base/dist/config/Theme.js";
import { getNoConflict, setNoConflict } from "@ui5/webcomponents-base/dist/config/NoConflict.js";
import { getAnimationMode } from "@ui5/webcomponents-base/dist/config/AnimationMode.js";
import { getLanguage, setLanguage } from "@ui5/webcomponents-base/dist/config/Language.js";
import { getCalendarType } from "@ui5/webcomponents-base/dist/config/CalendarType.js";
import { getFirstDayOfWeek } from "@ui5/webcomponents-base/dist/config/FormatSettings.js";