React Themes in Syncfusion Components

01 Feb 2023 / 4 minutes to read

The Syncfusion React UI can allow you to apply styles for the components. The following list of themes are included in the Syncfusion React components library.

Theme	Style Sheet Name
Bootstrap 5	bootstrap5.css
Bootstrap 5 Dark	bootstrap5-dark.css
Bootstrap 4	bootstrap4.css
Bootstrap 3	bootstrap.css
Bootstrap 3 Dark	bootstrap-dark.css
Google’s Material	material.css
Google’s Material-Dark	material-dark.css
Tailwind CSS	tailwind.css
Tailwind CSS Dark	tailwind-dark.css
Fluent	fluent.css
Fluent Dark	fluent-dark.css
Microsoft Office Fabric	fabric.css
Microsoft Office Fabric Dark	fabric-dark.css
High Contrast	highcontrast.css

The Syncfusion React Bootstrap theme is designed based on the Bootstrap v3, whereas the Bootstrap 4 theme is designed based on Bootstrap v4. In addition to these built-in themes, the ThemeStudio provides support for the Fusion Theme that can only be downloaded from the ThemeStudio.

Reference themes in the React application

Using the following approaches, the themes can be referenced in the React application,

npm packages - Used to customize the existing themes and bundle stylesheet in an application.
CDN - Used to refer complete css via static web assest.
CRG - Used to generate resources only for the selected (used) components.
Theme Studio - Used to customize and generate themes only for the selected (used) components.

Instead of using the CDN reference, use the npm packages reference in your projects to customize the theme or bundle it with the other style sheets.

Refer themes through npm packages

Themes are shipped as individual and combined CSS files. The combined CSS file can be referred from the npm package @syncfusion/ej2 and individual CSS files are available within the same component repository’s style folder. In ej2 npm packages, we have shipped both CSS and SCSS files for all components.

To use the combined CSS files, install the npm package using the following command

 npm install @syncfusion/ej2

Referring all components CSS

@import "./node_modules/@syncfusion/ej2/<theme_name>.css";

Referring all components SCSS

@import "./node_modules/@syncfusion/ej2/<theme_name>.scss";

Referring to individual component theme

You can get the individual theme from the individual package or from ej2 package.

Referring to individual component from the individual package

@import "<dependent-package>/styles/<theme_name>.scss";
@import "ej2-react-buttons/styles/button/<theme_name>.scss";

Example:

@import "ej2-base/styles/material.scss";
@import "ej2-react-buttons/styles/button/material.scss";

The ej2-base is a common dependent package for all Syncfusion React component styles. So, it needs to be added first in the import statement.

Referring to individual component from the ej2 package

@import "ej2/<dependent-component>/<theme_name>.scss";
@import "ej2/button/<theme_name>.scss";

Example:

@import "ej2/base/material.scss";
@import "ej2/button/material.scss";

Advantages of individual components theme

Reducing the page load time of application
Reducing bundling size
Avoid unused CSS

Refer themes through CDN reference

Instead of using a local resource on your server, use a cloud CDN to reference the theme style sheets.

Syncfusion React Themes are available in the CDN. Make sure that the version in the URLs matches the version of the Syncfusion React package you are using.

// Bootstrap5
<head>
<link href="https://cdn.syncfusion.com/ej2/20.4.48/bootstrap5.css" rel="stylesheet"/>
</head>
//Material
<head>
<link href="https://cdn.syncfusion.com/ej2/20.4.48/material.css" rel="stylesheet"/>
</head>

Theme Name	CDN Reference
Bootstrap 5	`https://cdn.syncfusion.com/ej2/20.4.48/bootstrap5.css`
Bootstrap 5 Dark	`https://cdn.syncfusion.com/ej2/20.4.48/bootstrap5-dark.css`
Bootstrap 4	`https://cdn.syncfusion.com/ej2/20.4.48/bootstrap4.css`
Bootstrap 3	`https://cdn.syncfusion.com/ej2/20.4.48/bootstrap3.css`
Bootstrap 3 Dark	`https://cdn.syncfusion.com/ej2/20.4.48/bootstrap3-dark.css`
Google’s Material	`https://cdn.syncfusion.com/ej2/20.4.48/material.css`
Google’s Material Dark	`https://cdn.syncfusion.com/ej2/20.4.48/material-dark.css`
Tailwind CSS	`https://cdn.syncfusion.com/ej2/20.4.48/tailwind.css`
Tailwind Dark CSS	`https://cdn.syncfusion.com/ej2/20.4.48/tailwind-dark.css`
Fluent	`https://cdn.syncfusion.com/ej2/20.4.48/fluent.css`
Fluent Dark	`https://cdn.syncfusion.com/ej2/20.4.48/fluent-dark.css`
Microsoft Office Fabric	`https://cdn.syncfusion.com/ej2/20.4.48/fabric.css`
Microsoft Office Fabric Dark	`https://cdn.syncfusion.com/ej2/20.4.48/fabric-dark.css`
High Contrast	`https://cdn.syncfusion.com/ej2/20.4.48/highcontrast.css`