From 30aaea4584a57b827c71b222dbd1828d13d10b05 Mon Sep 17 00:00:00 2001
From: Darren Yu <YDL@YUDONGLING.NET>
Date: Sat, 17 Jan 2026 03:24:13 +0800
Subject: [PATCH] feat(thumb): change image type to NRGBA when do resize to
 keep transparency

---
 pkg/thumb/builtin.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/thumb/builtin.go b/pkg/thumb/builtin.go
index 2081a9c2..10174099 100644
--- a/pkg/thumb/builtin.go
+++ b/pkg/thumb/builtin.go
@@ -120,7 +120,7 @@ func Thumbnail(maxWidth, maxHeight uint, img image.Image) image.Image {
 
 func Resize(newWidth, newHeight uint, img image.Image) image.Image {
 	// Set the expected size that you want:
-	dst := image.NewRGBA(image.Rect(0, 0, int(newWidth), int(newHeight)))
+	dst := image.NewNRGBA(image.Rect(0, 0, int(newWidth), int(newHeight)))
 	// Resize:
 	draw.BiLinear.Scale(dst, dst.Rect, img, img.Bounds(), draw.Src, nil)
 	return dst