The theme is seamlessly integrated with standard WordPress Customizer and it has some useful extensions.
Let’s make some initial setup together, for example, let’s figure out how to place your own logotype.
That’s even possible to combine both text & graphic logo parts. Or you can disable text part by unchecking Display Site Title and Tagline if you don’t need it.
There are many more options in customizer that the theme supports, like typography or colors customization. Just explore and play around with all these options. You may preview any changes in live before saving.