Book Image

Mastering Drupal 8

By : Sean Montague, Chaz Chumley, William Hurley
Book Image

Mastering Drupal 8

By: Sean Montague, Chaz Chumley, William Hurley

Overview of this book

Drupal is an open source content management system trusted by governments and organizations around the globe to run their websites. It brings with it extensive content authoring tools, reliable performance, and a proven track record of security. The community of more than 1,000,000 developers, designers, editors, and others have developed and maintained a wealth of modules, themes, and other add-ons to help you build a dynamic web experience. Drupal 8 is the latest release of the Drupal built on the Symfony2 framework. This is the largest change to the Drupal project in its history. The entire API of Drupal has been rebuilt using Symfony and everything from the administrative UI to themes to custom module development has been affected. This book will cover everything you need to plan and build a complete website using Drupal 8. It will provide a clear and concise walkthrough of the more than 200 new features and improvements introduced in Drupal core. In this book, you will learn advanced site building techniques, create and modify themes using Twig, create custom modules using the new Drupal API, explore the new REST and Multilingual functionality, import, and export Configuration, and learn how to migrate from earlier versions of Drupal.
Table of Contents (25 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Author
About the Reviewer
Customer Feedback
www.PacktPub.com
Preface

Installing and uninstalling themes


The act of installing or uninstalling a theme is a common practice when administering a Drupal website. Let's try installing Stark and making it our default theme in place of Bartik.

Step one - installing a theme

Currently, the only uninstalled theme is Stark, and we can easily move this into the installed state by following these two steps:

  1. Click on the Install and set as default link.
  2. Scroll back to the top of the Appearance admin.
  3. If we now look at the Installed themes section, we should see that we now have three themes installed: Stark, Bartik, and Seven. We can also tell that Stark is now our default theme by looking at the right of the theme, which will be marked as (default theme).

We can also see what the Stark theme looks like by clicking on the Back to site link in the Admin menu. We are now presented with an un-styled page, which helps to demonstrate the clean markup of Drupal.

Step two - uninstalling a theme

Let's navigate back to the Appearance admin...