The more you deal with WordPress Themes and the more functionalities you find in Premium WordPress Themes, the more refreshing it can be in some simple blog-projects just to stick to the basic Twenty Fifteen standard Theme that comes as a default with a regular WordPress Installation.
When it comes to customizing the basic Twenty Fifteen Theme it is about time to learn how Child Themes can be created and used.
‘A Bright Clear Web‘ explain on their Website how to easily create a standard Child Theme for the Twenty Fifteen WordPress Theme and how to add some additional features (like new Fonts and an additional Widget Area).
> www.abrightclearweb.com/creating-child-theme-wordpress-twenty-fifteen/