expo-payments-stripe/src/utils/processTheme.ts

Provides support for payments through Stripe and Apple Pay on iOS (in ExpoKit and bare apps), and Stripe on Android (plus Android Pay with ExpoKit and bare apps).

import { processColor } from 'react-native';

import { Theme } from './types';

export type ProcessedTheme = {
  [K in keyof Theme]?: number;
};

export default function processTheme(theme: Theme = {}) {
  return Object.keys(theme).reduce<ProcessedTheme>((result, key) => {
    const value = theme[key];
    if (key.toLowerCase().endsWith('color')) {
      result[key] = processColor(value);
      return result;
    }
    result[key] = value;
    return result;
  }, {});
}