To update the logo type, let’s move to the folder frontend->static->media. Here we are going to have all the images of our site.

Just copy the name of the image you want to modify, in this case the logo, and we will replace it with the new logo.
If you want to customize the banners, some icons, you can follow the same steps that were used to modify the logo, just remember to replace the images you want to change, keeping the original names.