From 9391ac0112de5da94bc252e7b1f59322d04c885b Mon Sep 17 00:00:00 2001
From: Danila Poyarkov <dev@dannote.net>
Date: Mon, 16 Mar 2026 14:17:28 +0300
Subject: [PATCH] Fix save crash when COLOR variable is missing alpha
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reuse safeColor() (which defaults a ?? 1) in the variable export
path. The Kiwi schema requires all Color struct fields — variables
created without explicit alpha caused 'Missing required field a'.

Fixes #128
---
 packages/core/src/fig-export.ts     | 4 ++--
 packages/core/src/kiwi-serialize.ts | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/core/src/fig-export.ts b/packages/core/src/fig-export.ts
index 7d097304e..a13f7cd50 100644
--- a/packages/core/src/fig-export.ts
+++ b/packages/core/src/fig-export.ts
@@ -1,7 +1,7 @@
 import { zipSync, deflateSync, type Zippable } from 'fflate'
 
 import { CANVAS_BG_COLOR, IS_BROWSER, IS_TAURI } from './constants'
-import { sceneNodeToKiwi, fractionalPosition, buildFigKiwi, buildFontDigestMap } from './kiwi-serialize'
+import { sceneNodeToKiwi, fractionalPosition, buildFigKiwi, buildFontDigestMap, safeColor } from './kiwi-serialize'
 import { initCodec, getCompiledSchema, getSchemaBytes } from './kiwi/codec'
 import { stringToGuid } from './kiwi/kiwi-convert'
 import { renderThumbnail } from './render-image'
@@ -34,7 +34,7 @@ function variableValueToKiwi(
   }
   if (type === 'COLOR' && typeof value === 'object' && 'r' in value) {
     return {
-      value: { colorValue: { r: value.r, g: value.g, b: value.b, a: value.a } },
+      value: { colorValue: safeColor(value as { r: number; g: number; b: number; a?: number }) },
       dataType: 'COLOR',
       resolvedDataType: 'COLOR'
     }
diff --git a/packages/core/src/kiwi-serialize.ts b/packages/core/src/kiwi-serialize.ts
index bdc2739e9..77f33a500 100644
--- a/packages/core/src/kiwi-serialize.ts
+++ b/packages/core/src/kiwi-serialize.ts
@@ -251,7 +251,7 @@ function exportTextData(node: SceneNode): NodeChange['textData'] {
   }
 }
 
-function safeColor(c: { r: number; g: number; b: number; a?: number }): Color {
+export function safeColor(c: { r: number; g: number; b: number; a?: number }): Color {
   return { r: c.r, g: c.g, b: c.b, a: c.a ?? 1 }
 }