Topbar Left Side (Tagline)
The text on the left side of the topbar can be edited under Settings → General at the “Tagline” setting.
Topbar Right Side (Contact details)
Under Appearance → Widgets by clicking the “Topbar – Right Side” widget panel on the right side of the screen you can edit the contact details. In this panel you find the “QT: Icon Box” and “QT: Social Icons” widgets that can be opened by clicking them to edit the content.
Change topbar colors
Under Appearance → Customize → Theme Options → Topbar you can change the colors of the topbar.