You can customize Site Settings as you like. Go to Settings > Site Settings.

• Site Title: Write Your Site Title Here.
• Dark Logo: Dark Version of the main logo.
• Logo: Main Website Logo.
• Favicon: Choose your site favicon
• Default language: Select Default Language for this system. To add more languages, you can create them from  Settings -> Languages.
• Select Default Timezone: Select Default timezone.
• Copyright Text: Set website copyright Text from here.

Now Click Submit to save these settings.