From c05d953837a0a9ab69d2c57ce5729469cdd48fde Mon Sep 17 00:00:00 2001
From: Paul Manzotti <paul.manzotti@bioinsightspub.onmicrosoft.com>
Date: Wed, 22 May 2024 13:56:23 +0100
Subject: [PATCH] Added missing background transform to TinyPNG convert call

---
 src/TinyPNG/Extensions/ConvertExtensions.cs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/TinyPNG/Extensions/ConvertExtensions.cs b/src/TinyPNG/Extensions/ConvertExtensions.cs
index 9cd5023..dfa1c8c 100644
--- a/src/TinyPNG/Extensions/ConvertExtensions.cs
+++ b/src/TinyPNG/Extensions/ConvertExtensions.cs
@@ -33,7 +33,16 @@ public static async Task<TinyPngConvertResponse> Convert(this Task<TinyPngCompre
 
         TinyPngCompressResponse compressResponse = await result;
 
-        string requestBody = JsonSerializer.Serialize(new { convert = new { type = convertOperation } }, TinyPngClient._jsonOptions);
+        string requestBody = JsonSerializer.Serialize(new {
+            convert = new
+            {
+                type = convertOperation
+            },
+            transform = backgroundTransform == null ? null : new
+            {
+                background = backgroundTransform
+            }
+        }, TinyPngClient._jsonOptions);
 
         HttpRequestMessage msg = new(HttpMethod.Post, compressResponse.Output.Url)
         {