The Appearance Themes Screen allows you to manage your Themes. That means you can install, preview, delete Themes, activate, and update Themes.
A WordPress Theme is a collection of files that work together to produce a graphical interface with an underlying unifying design for a weblog. These files are called template files. A Theme modifies the way the site is displayed, without modifying the underlying software. Themes may include customized template files, image files (*.jpg, *.gif), style sheets (*.css), custom Pages, as well as any necessary code files (*.php). For an introduction to template files, see Stepping Into Templates.
Back to Administration Screens.
The current active Theme appears first in the upper left corner. Initially, as part of the WordPress installation process, the WordPress Twenty Fifteen theme is displayed as the active Theme.
A small screenshot of the Theme is shown. If you roll over the image with your cursor, a "Theme Details" button appears. Click it and you'll be provided with the name of the Theme, the Theme version, the Theme author, and a short description of the Theme. Additional buttons are below that activate specific current theme appearance screens that correspond to the menu picks on the left.
The remainder of the Manage Themes screen shows the other Themes that are installed. If there are more than 15 installed Themes then a page navigation tool is displayed above and below the available Themes. Fifteen Themes per page are displayed, so click the page number to navigate to the next or previous page of Themes.
As with the Current Theme image, a small screenshot of each Theme is shown. Roll over the image to show "Theme Details", "Activate", and "Live Preview" buttons. Click the "Theme Details" button to see, along with the name of the Theme, the Theme version, and the Theme author, a short description of the Theme. The Theme Details modal has buttons displayed to Activate, Live Preview, and links to Delete, and if available, upgrade the Theme.
Themes can be installed in several ways:
Each of these installation methods is described below.
The automated Theme installer can be used to install any Theme in the WordPress Theme Directory. This is the easiest way to install a Theme.
Visit Administration > Appearance > Themes, click the Add New button. You can find additional themes for your site from the WordPress Theme Directory. These themes are designed and developed by third parties, are available free of charge, and are compatible with the license WordPress uses.
Use one of three Search methods to find the desired Theme:
Once you have generated a list of themes, you can preview and install any of them. Click on the thumbnail of the theme you’re interested in previewing. It will open up in a full-screen Preview page to give you a better idea of how that theme will look.
To install the theme so you can preview it with your site’s content and customize its theme options, click the "Install" button at the top of the left-hand pane. The theme files will be downloaded to your website automatically. When this is complete, the theme is now available for activation, which you can do by clicking the "Activate" link. Or you may click "Live Preview" or "Return to Theme Installer".
The upload method is another easy way to install a Theme. This can be used to install any Theme that is in a ZIP file. All the Themes in the WordPress Theme Directory can be installed using this method. Download the ZIP file. First find the Theme you want to install. The screenshot shows the P2 theme ready to be downloaded. Various other sources of Themes can be used and the key is to download the Theme ZIP file to your local computer. Place the file anywhere convenient.
Visit Administration > Appearance > Themes, click the Add New button, then click the Upload Theme link. Click Browse button and specify the ZIP file you downloaded in above step and click Install Now.
The Install Theme from uploaded file will display the results of the installation. Click the Activate link to make that the Current Theme.
It is unlikely that it would be necessary to use the FTP method of installing a Theme, but if necessary follow these steps.
If your host offers the cPanel control panel, and the Theme files are in a .zip or .gz archive follow these instructions.