We will start customizing the look and feel of the shop by creating a custom theme. The purpose of a custom theme is that we don't have to modify the core files delivered by Magento.
Open your Magento webroot in your favorite IDE. We will create a theme and, for this, we will work in the
Before you start, disable the full-page cache because this will save you a lot of trouble. You can do this in the backend on the page System | Cache Management. Click on the Flush Magento Cache button after you have disabled the Full page caching.
The following procedure shows you which actions are required to create a custom theme: