Site Theme
A site’s theme dictates your site’s general appearance. You can customize your existing theme or choose a different theme entirely. Select Appearance > Customize from the sidebar menu to customize your existing theme, or Appearance > Themes to play around with other themes. The Live Preview button lets you see what your site content would look like with another theme!
With the Elementor plugin installed, some Elementor settings may override the theme, or vice versa, so you’ll want to test and monitor your content as you make changes.
Plugins
Plugins add additional functionality to your website. For example, if you would like your site to have a contact form, you might be interested in installing a plugin to accomplish this goal.
You can install them by clicking Plugins from the sidebar menu and then clicking the Add New Plugin button at the top. There are many plugins out there to meet a variety of needs: make sure to read the details carefully. Before you install a new plugin, make sure your plugin has other active installations, good reviews, and regular updates; and is compatible with your version of WordPress.