---
title: Migrate ThemeProvider from Polaris React
description: Remove Polaris React ThemeProvider when migrating to Polaris web components.
source_url:
  html: >-
    https://shopify.dev/docs/apps/build/app-home/migrate-from-polaris-react/theme-provider
  md: >-
    https://shopify.dev/docs/apps/build/app-home/migrate-from-polaris-react/theme-provider.md
api_name: app-home
---

# Migrate Theme​Provider from Polaris React

Polaris web components have no `ThemeProvider` equivalent. Their appearance comes from the Shopify admin shell and the loaded Polaris web-components library, not from an app-owned wrapper.

***

## Remove the wrapper

Render migrated descendants directly and delete `ThemeProvider` once nothing still depends on its React context. Keep unrelated app context providers that continue to own application behavior.

Migrate theme-dependent custom CSS separately. Replace Polaris React token references with supported app styling, and verify contrast and behavior in Shopify admin rather than recreating a per-subtree Polaris theme.

Don't remove `@shopify/polaris` while another component still imports it. Test the workflows that used the wrapper, including overlays and focus behavior, before removing the package-level setup.

***