In this chapter, we described the file and folder structure of a default theme. You learned how to change the general settings of images and module images. You also learned how to create and manage banners and layouts, carousels, and slideshows. One main thing to remember is never ever delete the default theme folder. Always leave it in place, as it is used as a fallback if a custom theme does not have template files. So, in this way, you learned about the theme structure. In the next chapter, we will deal with basic knowledge of Bootstrap, Font Awesome, and FlexSlider of OpenCart version 2.