From 278c2031fb4529c577c74b18938a0ae38d32226e Mon Sep 17 00:00:00 2001
From: Adam Wathan <adam.wathan@gmail.com>
Date: Fri, 13 Nov 2020 19:51:05 -0500
Subject: [PATCH] Fix bug where color palette could not be empty

---
 __tests__/flattenColorPalette.test.js | 4 ++++
 src/util/flattenColorPalette.js       | 1 +
 2 files changed, 5 insertions(+)

diff --git a/__tests__/flattenColorPalette.test.js b/__tests__/flattenColorPalette.test.js
index 384c2f672122..e8edcd9aa18a 100644
--- a/__tests__/flattenColorPalette.test.js
+++ b/__tests__/flattenColorPalette.test.js
@@ -75,3 +75,7 @@ test('it flattens deeply nested color objects', () => {
     'button-primary-focus-variant': 'orange',
   })
 })
+
+test('it handles empty objects', () => {
+  expect(flattenColorPalette({})).toEqual({})
+})
diff --git a/src/util/flattenColorPalette.js b/src/util/flattenColorPalette.js
index de094a3cb0c7..79b8dc3e83b7 100644
--- a/src/util/flattenColorPalette.js
+++ b/src/util/flattenColorPalette.js
@@ -1,5 +1,6 @@
 const flattenColorPalette = (colors) =>
   Object.assign(
+    {},
     ...Object.entries(colors).flatMap(([color, values]) =>
       typeof values == 'object'
         ? Object.entries(flattenColorPalette(values)).map(([number, hex]) => ({