A theme is a collection of files that define the presentation layer of a Drupal website. It is responsible for the look and feel of the website, including the layout, colors, and styles. Themes can be used to customize the appearance of a website, or to create a completely new look and feel.
A theme is composed of several files, including template files, CSS files, JavaScript files, and image files. Template files contain the HTML code that defines the structure of the website, while CSS files contain the styling information. JavaScript files are used to add interactivity to the website, and image files are used to provide visual elements.
Themes can be installed and enabled through the Drupal administrative interface. Once enabled, the theme will be applied to the entire website. Themes can also be customized by editing the template files, CSS files, and JavaScript files.
Themes are an important part of the Drupal experience, as they allow users to customize the look and feel of their website. By using themes, users can create a unique and personalized experience for their visitors.