Gain insights into practical CSS theming methods, delve into problem-solving, and discover the css-theming package to create highly customizable, dark mode-friendly apps in this course.

CSS isn’t what it used to be. Today, you’ll be hard-pressed to find a strong, straightforward, and expressive UI language that can beat modern CSS. As the tech world moves more and more towards web-based frameworks for UI, we start to see a bigger emphasis on highly customized looks for apps.

In this course, you'll learn how to properly develop apps that are theme aware. This course is split into two sections: in the first section, you will learn the practical methods and patterns around theming and discover common problems and their solutions. In the second section, you will get hands-on experience with the css-theming package and through it you'll learn how to customize every facet of your app. Most importantly, no matter the kind of app you're developing, users have come to expect dark mode support nowadays as a given.

By the end of this course you’ll be able to create stunning apps that are highly customizable by either applying what you learned in your own way or using the css-theming package.

CSS Theming for Professionals

## Installing `css-theming`

The `css-theming` package is released as an npm package.

[![npm](https://img.shields.io/npm/v/css-theming.svg)](https://www.npmjs.com/package/css-theming)

Type the following in your favorite terminal to install it:

```
$ npm i css-theming
```

## Modules

There are both JavaScript modules (typescript type definitions available) and SCSS src files after you install the package.

## JS

You use the JavaScript modules the usual way:

```javascript
import { initializeTheming, ... } from 'css-theming';
```

## SCSS

The SCSS src files are at `css-theming/src/scss/`:
```scss
// Change "../" depending on where your file is.
@import '../node_modules/css-theming/src/scss/css-theming';
```

> **Note:** Check the different samples in the GitHub repo to see this up close. 

---

After you've successfully installed `css-theming`, move to the next lesson to begin the setup.

# Installing `css-theming`

The `css-theming` package is released as an npm package.

[![npm](https://img.shields.io/npm/v/css-theming.svg)](https://www.npmjs.com/package/css-theming)

Type the following in your favorite terminal to install it:

```
$ npm i css-theming
```

# Modules

There are both JavaScript modules (typescript type definitions available) and SCSS src files after you install the package.

# JS

You use the JavaScript modules the usual way:

```javascript
import { initializeTheming, ... } from 'css-theming';
```

# SCSS

The SCSS src files are at `css-theming/src/scss/`:
```scss
// Change "../" depending on where your file is.
@import '../node_modules/css-theming/src/scss/css-theming';
```

> **Note:** Check the different samples in the GitHub repo to see this up close. 

This lesson shows how to install the css-theming package.

Before Getting Started

Theory

Using css-theming

Samples

Installation

Installing `css-theming`

Modules

JS

SCSS