Spec a (very visible) preloadBackgroundColor

Author: amcclain

client-app/webpack.config.js

@@ -35,6 +35,7 @@ module.exports = (env = {}) => {
         devServerOpenPage: 'app/',
         dupePackageCheckExcludes: ['es-abstract', 'tslib'],
         sourceMaps: 'devOnly',
+        preloadBackgroundColor: '#f7931c',
         // Use React prod mode, primarily to avoid console warnings for react 18
         reactProdMode: false,
         // Include custom package for babel transpiling for both packaged and inline use cases.