From 9e9dd82b3b91a29a7bcee2062451d40fead32420 Mon Sep 17 00:00:00 2001
From: Brian Vaughn <brian.david.vaughn@gmail.com>
Date: Mon, 27 Nov 2023 10:19:40 -0500
Subject: [PATCH] Change default (not-yet-registered) Panel flex-grow style
 from 0 to 1

---
 .../src/utils/computePanelFlexBoxStyle.ts                    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/react-resizable-panels/src/utils/computePanelFlexBoxStyle.ts b/packages/react-resizable-panels/src/utils/computePanelFlexBoxStyle.ts
index 705397a2d..188ea722c 100644
--- a/packages/react-resizable-panels/src/utils/computePanelFlexBoxStyle.ts
+++ b/packages/react-resizable-panels/src/utils/computePanelFlexBoxStyle.ts
@@ -22,9 +22,10 @@ export function computePanelFlexBoxStyle({
 
   let flexGrow;
   if (panelData.length === 1) {
-    flexGrow = "100";
+    flexGrow = "1";
   } else if (size == null) {
-    flexGrow = "0";
+    // Initial render (before panels have registered themselves)
+    flexGrow = "1";
   } else {
     flexGrow = size.toPrecision(precision);
   }