Child and Parent theme
Safe Updates. You can easily modify your website using child themes without ever changing the parent theme. When a new version of the parent theme appears, you can safely update it as all your modifications are saved in the child theme.
Easy to Extend. A child theme has a great flexibility. It does not require writing a lot of code. You can modify only those template files and functions that you need.
Notice! When you install one of our themes you must upload both parent and child theme folders to /wp-content/themes/ but you should only activate the Child theme via Appearance > Themes.
Modifying files from the Parent theme folder
While you should never edit files in your Parent theme, if you really must, the safest way to do it is to download a copy of the file you want to modify on your computer, make the changes, and then upload it into your child theme folder.
This way of modifying the files can be used for any files from the parent theme — note that you must re-create the same folder structure in your child theme that exist in the parent theme in order for the modifications to take effect.