This modification add in banner new field Description

Go to Design -> Banners and choose your banner or add new banner and you should see a new field Description.
Below is an example of with an image, as should look.



Let's write the text example and save.

Now we have a new variable description in banners array and it is available in the following templates

• catalog/view/theme/your-theme-name or default/template/extension/module/slideshow.twig
  
• catalog/view/theme/your-theme-name or default/template/extension/module/carousel.twig
  
• catalog/view/theme/your-theme-name or default/template/extension/module/banner.twig

Let's display our previously written text example. I wrote this text in banner slideshow.

Go to catalog/view/theme/your-theme-name or default/template/extension/module/slideshow.twig.
Bellow example with an image code before.



I add code {{banner.description}}. Bellow example with an image code after.



Now we turn to our website and you should see text example.
Bellow example with an image as should look.