From 43f1c63fb920d0f750226f2e567e03e4dcba7a79 Mon Sep 17 00:00:00 2001
From: Westbrook Johnson <westbrook.johnson@gmail.com>
Date: Fri, 10 Dec 2021 09:03:59 -0500
Subject: [PATCH] fix: use local declaration of ShadowRoot.adoptedStyleSheets

---
 packages/theme/src/Theme.ts | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/packages/theme/src/Theme.ts b/packages/theme/src/Theme.ts
index 8737e3720f..75248efbf3 100644
--- a/packages/theme/src/Theme.ts
+++ b/packages/theme/src/Theme.ts
@@ -36,11 +36,12 @@ declare global {
             };
         };
     }
-    interface ShadowRoot {
-        adoptedStyleSheets?: CSSStyleSheet[];
-    }
 }
 
+type ShadowRootWithAdoptedStyleSheets = HTMLElement['shadowRoot'] & {
+    adoptedStyleSheets?: CSSStyleSheet[];
+};
+
 type FragmentType = 'color' | 'scale' | 'core' | 'app';
 type SettableFragmentTypes = 'color' | 'scale';
 type FragmentMap = Map<string, { name: string; styles: CSSResultGroup }>;
@@ -106,7 +107,7 @@ export class Theme extends HTMLElement implements ThemeKindProvider {
         }
     }
 
-    public shadowRoot!: ShadowRoot;
+    public shadowRoot!: ShadowRootWithAdoptedStyleSheets;
 
     private _color: Color | '' = '';