Most branding changes are done in the Customizer — no code required.
1. Go to Appearance → Customize. 2. Site Identity: upload your logo and set the site title and favicon. 3. Colors: set your primary/accent colors (the exact panel names vary by theme). 4. Typography: choose heading and body fonts and sizes. 5. Click Publish to save.
Changes preview live on the right before you publish. If a change doesn't appear on the live site afterward, clear your caching plugin and browser cache.