02. Theme Options - Customizer
After activating the theme, you will notice that a new submenu item appeared, under "Appearance -> Customize".
If you click on it you will be taken to the WordPress customizer, a tool which will allow you to modify the look and feel of your website.
Unfortunately not all theme options features are present. You can select only the colors and the social profiles.
When you change the colors, you need re-load the page for see the changes