All the settings for the Guten theme are neatly built into the WordPress Customizer.
There are 2 main ways to navigate to the WordPress Customizer:
From the admin area: Dashboard -> Appearance -> Customize.
From the front-end: Click Customize in the WordPress top admin bar.
Once you’re in the WordPress Customizer you will find all the Guten theme settings under the panels that turn blue when you hover over them.
We’ve added most of our own Customizer panels for the theme settings, but we’ve also added extra settings for the site logo and WooCommerce etc, which we have placed within the panels already created by WordPress or other plugins… And we’ve made those panels change blue on hover too, to show you we’ve added our own settings there too.
So go to the Customizer, edit the different settings and see the changes happen live in the preview before saving anything to the live site.