The Branding section in the The Architect theme Customizer contains 2 options. Navigate to Appearance → Customize → Theme Options → Branding to access these settings.

Options

• Logo Image (Image) — Upload your branding logo. Retina ready (recommended @2x).
• Logo Top Margin (Range) — Top margin for the logo in pixels (0–100).

After making changes, click Publish at the top of the Customizer to save your settings.