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

> **Note:** If you need a quick refresher about CSS variables, check [this shot](https://www.educative.io/edpresso/what-is-a-css-variable).

# Inheritance

CSS variables (also called custom properties) have one special feature that makes them perfect for our theming needs. CSS variables are _inherited_.

Consider the following example:

This lesson introduces CSS variables and how we'll use them in our themes.

Before Getting Started

Theory

Using css-theming

Samples

CSS Variables

Inheritance #