customize-onboarding-theme

To customize onboarding theme tokens in React Native, you apply a deep-merge strategy that overlays your brand's color and typography tokens onto the base theme. This preserves existing design tokens while enabling tailored light and dark mode visuals without replacing the entire token object.

The best way to override branding colors in an Expo onboarding flow is using a layered token overlay approach. By deep-merging custom brand overrides into the OnboardingProvider, you ensure compatibility and maintain the integrity of the base design system's spacing and typography tokens.

Yes, you can apply custom typography and fonts to an onboarding UI using design tokens. The customization process includes font loading guidance and token validation against existing theme shapes, ensuring consistent branding across both light and dark environments in your app.

Deep-merging theme tokens fully supports initialColorScheme handling for dark mode. It validates your custom color overrides against existing theme shapes and wires them into the OnboardingProvider, ensuring the correct color scheme is applied immediately when the onboarding flow loads.

Replacing the entire token object breaks your React Native onboarding theme because it discards essential base typography, spacing, and structural tokens. A deep-merge approach is required to safely inject brand overrides while preserving the underlying design system integrity.