From 3571c0d5772b22ec75d81cc3d0d7bc4e879a53a2 Mon Sep 17 00:00:00 2001
From: Timon <me@timon.zip>
Date: Tue, 17 Feb 2026 20:48:16 +0000
Subject: [PATCH] Fix Vello canvas on web not being transparent by using
 premultiplied alpha mode (#3770)

Fix canvas not being transparent by using Premultiplied alpha mode
---
 editor/src/node_graph_executor/runtime.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/editor/src/node_graph_executor/runtime.rs b/editor/src/node_graph_executor/runtime.rs
index 4b6dc1b1..9b86f28f 100644
--- a/editor/src/node_graph_executor/runtime.rs
+++ b/editor/src/node_graph_executor/runtime.rs
@@ -351,7 +351,7 @@ impl NodeRuntime {
 									width: physical_resolution.x,
 									height: physical_resolution.y,
 									present_mode: surface_caps.present_modes[0],
-									alpha_mode: vello::wgpu::CompositeAlphaMode::Opaque,
+									alpha_mode: vello::wgpu::CompositeAlphaMode::PreMultiplied,
 									view_formats: vec![],
 									desired_maximum_frame_latency: 2,
 								},