From 3cb33734ff0a69e3d24f129ff210e8e52139002d Mon Sep 17 00:00:00 2001
From: Mike Donnalley <mdonnalley@salesforce.com>
Date: Mon, 29 Jan 2024 13:53:52 -0700
Subject: [PATCH] fix: return undefined if no theme

---
 src/config/config.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/config/config.ts b/src/config/config.ts
index ba701ac8e..fa005f84d 100644
--- a/src/config/config.ts
+++ b/src/config/config.ts
@@ -415,12 +415,13 @@ export class Config implements IConfig {
       await safeReadJson<Record<string, string>>(userThemeFile),
     ])
 
+    // Merge the default theme with the user theme, giving the user theme precedence.
+    const merged = {...defaultTheme, ...userTheme}
     return {
       // Point to the user file if it exists, otherwise use the default file.
       // This doesn't really serve a purpose to anyone but removing it would be a breaking change.
       file: userTheme ? userThemeFile : defaultThemeFile,
-      // Merge the default theme with the user theme, giving the user theme precedence.
-      theme: parseTheme({...defaultTheme, ...userTheme}),
+      theme: Object.keys(merged).length > 0 ? parseTheme(merged) : undefined,
     }
   }