@allene1218: That is called “Featured Page Slider” and you can add your own slider image, text and content. For that first you need to create page and add in Featured image in your page. Then go to “Appearance => Customize => Featured Slider Options => Featured Slider Type” and select “Featured Page Slider” and then you can just select the pages where you have added in featured image. Now, it will display you page title, content and featured image.
If you want to disable the slider completely then go to “”Appearance => Customize => Featured Slider Options => Featured Slider Settings” and in Enable Slider on, you need to choose “Disabled” and save change.
But if you just want to hide the text in the slider, then you can add the following css in “Appearance => Customize => Theme Options => Custom CSS Options” box:
#feature-slider .entry-container { display: none; }
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