From dcf607f279b4d98868c3f13c6fcd8c2daf50abf3 Mon Sep 17 00:00:00 2001
From: braks <78412429+bcakmakoglu@users.noreply.github.com>
Date: Tue, 18 Oct 2022 14:26:28 +0200
Subject: [PATCH] fix(core): allow undefined as custom theme var value

---
 packages/core/src/types/flow.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/core/src/types/flow.ts b/packages/core/src/types/flow.ts
index b7938b11..9e783bfc 100644
--- a/packages/core/src/types/flow.ts
+++ b/packages/core/src/types/flow.ts
@@ -39,7 +39,10 @@ export type Elements<
   EdgeEvents extends Record<string, CustomEvent> = any,
 > = Element<NodeData, EdgeData, NodeEvents, EdgeEvents>[]
 
-export type CustomThemeVars = Record<string, string | number>
+export interface CustomThemeVars {
+  [key: string]: string | number | undefined
+}
+
 export type CSSVars =
   | '--vf-node-color'
   | '--vf-box-shadow'
@@ -47,6 +50,7 @@ export type CSSVars =
   | '--vf-node-text'
   | '--vf-connection-path'
   | '--vf-handle'
+
 export type ThemeVars = { [key in CSSVars]?: CSSProperties['color'] }
 export type Styles = CSSProperties & ThemeVars & CustomThemeVars
 export type ClassFunc<ElementType extends FlowElement = FlowElement> = (element: ElementType) => string | void