If you want to change the design of your WordPress site theme design and development custom or premium, you can customize WordPress themes with child themes and page builder plugins.
Theming system helps developers, designers, and bloggers to create beautiful and customizable websites and blogs. It is very easy to install and set WordPress themes.
Normally free WordPress themes do not offer dozens of features but premium themes offer advanced features and functionality. You can use premium themes on multiple websites and blogs but you don’t want to use the same design on all sites.