Theme Installation Child Theme
August 14, 2019 at 5:29 AMA WordPress child theme is a theme that inherits the functionality of the parent theme. With a child theme, you can make modifications or add additional functionality to the parent theme. The child theme offers the safest and easiest way to modify an existing theme, whether you want to make a few small changes or extensive ones.
Read more - https://developer.wordpress.org/themes/advanced-topics/child-themes/
Legenda fully supports Child Theme.
The child theme is included in the theme package. Find the Legenda-child in the package, or download from this page https://www.8theme.com/downloads/, and upload it to the /wp-content/themes/ folder.