From a8db4abdb40af298bfa930335ad5cf7a6c8c1ba4 Mon Sep 17 00:00:00 2001
From: russkyc <jrcc1023@gmail.com>
Date: Thu, 6 Nov 2025 10:25:10 +0800
Subject: [PATCH 1/2] Support setting webview background color

---
 WebViewControl/GlobalSettings.cs | 10 ++++++++++
 WebViewControl/WebViewLoader.cs  |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/WebViewControl/GlobalSettings.cs b/WebViewControl/GlobalSettings.cs
index 1482b352..9ddd6e70 100644
--- a/WebViewControl/GlobalSettings.cs
+++ b/WebViewControl/GlobalSettings.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using System.IO;
 using Xilium.CefGlue.Common;
 
@@ -7,6 +8,7 @@ namespace WebViewControl {
 
     public class GlobalSettings {
 
+        private Color backgroundColor = Color.White;
         private bool persistCache;
         private bool enableErrorLogOnly;
         private bool osrEnabled = false;
@@ -25,6 +27,14 @@ public void AddCommandLineSwitch(string key, string value) {
         
         public IEnumerable<KeyValuePair<string, string>> CommandLineSwitches => commandLineSwitches;
 
+        public Color BackgroundColor {
+            get => backgroundColor;
+            set {
+                EnsureNotLoaded(nameof(BackgroundColor));
+                backgroundColor = value;
+            }
+        }
+
         public string CachePath {
             get => cachePath;
             set {
diff --git a/WebViewControl/WebViewLoader.cs b/WebViewControl/WebViewLoader.cs
index 0b2feed7..e6d09678 100644
--- a/WebViewControl/WebViewLoader.cs
+++ b/WebViewControl/WebViewLoader.cs
@@ -37,7 +37,8 @@ public static void Initialize(GlobalSettings settings) {
                 CachePath = settings.CachePath, // enable cache for external resources to speedup loading
                 WindowlessRenderingEnabled = settings.OsrEnabled,
                 RemoteDebuggingPort = settings.GetRemoteDebuggingPort(),
-                UserAgent = settings.UserAgent
+                UserAgent = settings.UserAgent,
+                BackgroundColor = new CefColor(settings.BackgroundColor.A, settings.BackgroundColor.R, settings.BackgroundColor.G, settings.BackgroundColor.B),
             };
 
             var customSchemes = CustomSchemes.Select(s => new CustomScheme() {

From 241090ecb0c391d9334e0094e60e3ebf9ba5cf00 Mon Sep 17 00:00:00 2001
From: russkyc <jrcc1023@gmail.com>
Date: Thu, 6 Nov 2025 10:43:42 +0800
Subject: [PATCH 2/2] Refactor setting background color to use ToArgb()

---
 WebViewControl/WebViewLoader.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/WebViewControl/WebViewLoader.cs b/WebViewControl/WebViewLoader.cs
index e6d09678..4a598701 100644
--- a/WebViewControl/WebViewLoader.cs
+++ b/WebViewControl/WebViewLoader.cs
@@ -38,7 +38,7 @@ public static void Initialize(GlobalSettings settings) {
                 WindowlessRenderingEnabled = settings.OsrEnabled,
                 RemoteDebuggingPort = settings.GetRemoteDebuggingPort(),
                 UserAgent = settings.UserAgent,
-                BackgroundColor = new CefColor(settings.BackgroundColor.A, settings.BackgroundColor.R, settings.BackgroundColor.G, settings.BackgroundColor.B),
+                BackgroundColor = new CefColor((uint)settings.BackgroundColor.ToArgb())
             };
 
             var customSchemes = CustomSchemes.Select(s => new CustomScheme() {