# Customize your docs > Brand your documentation with colors, logos, and layouts The `docs.yml` file controls the visual appearance of your documentation site. Explore the customization options below and click through to the Fern documentation for detailed configuration guides. Set brand colors for light and dark modes Add your logo and favicon Customize fonts for headings and body text Configure page width, tabs placement, and more Add links and buttons to your navigation bar Advanced styling with custom CSS and JavaScript ## Quick example Here's a minimal example showing common customization options in `docs.yml`: ```yaml title="docs.yml" title: Your Documentation colors: accentPrimary: dark: "#81C784" light: "#1B5E20" logo: dark: docs/assets/logo-dark.svg light: docs/assets/logo-light.svg favicon: docs/assets/favicon.svg ``` For complete configuration options, see the [site-level settings documentation](https://buildwithfern.com/learn/docs/configuration/site-level-settings).