fix(fig): prefer shared stroke styles

packages/core/src/kiwi/node-change/style-refs.ts

@@ -40,7 +40,7 @@ export function applyStyleRefsToFields(
   }
 
   const strokeFillStyleGuid = fields.styleIdForStrokeFill?.guid
-  if (strokeFillStyleGuid && fields.strokePaints === undefined) {
+  if (strokeFillStyleGuid) {
     const style = changeMap.get(guidToString(strokeFillStyleGuid))
     if (style?.styleType === 'FILL' && style.fillPaints) fields.strokePaints = style.fillPaints
   }

tests/engine/io/fig/import/style-refs.test.ts

@@ -0,0 +1,44 @@
+import { describe, expect, test } from 'bun:test'
+
+import type { NodeChange } from '#core/kiwi/binary/codec'
+import { applyStyleRefsToFields } from '#core/kiwi/node-change/style-refs'
+
+describe('fig import style refs', () => {
+  test('stroke fill style overrides stale direct stroke paint', () => {
+    const styleGuid = { sessionID: 4, localID: 4594 }
+    const stylePaint = {
+      type: 'SOLID' as const,
+      color: { r: 0.886274516582489, g: 0.9098039269447327, b: 0.9411764740943909, a: 1 },
+      opacity: 1,
+      visible: true,
+      blendMode: 'NORMAL' as const
+    }
+    const fields: Record<string, unknown> & Pick<NodeChange, 'styleIdForStrokeFill' | 'strokePaints'> = {
+      styleIdForStrokeFill: { guid: styleGuid },
+      strokePaints: [
+        {
+          type: 'SOLID',
+          color: { r: 0, g: 0, b: 0, a: 1 },
+          opacity: 1,
+          visible: true,
+          blendMode: 'NORMAL'
+        }
+      ]
+    }
+
+    applyStyleRefsToFields(
+      new Map([
+        [
+          '4:4594',
+          {
+            styleType: 'FILL',
+            fillPaints: [stylePaint]
+          }
+        ]
+      ]),
+      fields
+    )
+
+    expect(fields.strokePaints).toEqual([stylePaint])
+  })
+})