From f4431d2acc8e5dd25ed41c0c8af97050a7a230d1 Mon Sep 17 00:00:00 2001
From: bjorn3 <bjorn3@users.noreply.github.com>
Date: Sat, 1 Feb 2020 13:12:39 +0100
Subject: [PATCH] [VSCode] Fix syntax highlighting

Fixes #2969
---
 editors/code/src/color_theme.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/editors/code/src/color_theme.ts b/editors/code/src/color_theme.ts
index cbad47f3571..e4d20490b1f 100644
--- a/editors/code/src/color_theme.ts
+++ b/editors/code/src/color_theme.ts
@@ -28,7 +28,9 @@ export class ColorTheme {
     static fromRules(rules: TextMateRule[]): ColorTheme {
         const res = new ColorTheme();
         for (const rule of rules) {
-            const scopes = typeof rule.scope === 'string'
+            const scopes = typeof rule.scope === 'undefined'
+                ? []
+                : typeof rule.scope === 'string'
                 ? [rule.scope]
                 : rule.scope;
             for (const scope of scopes) {