[Settings] Custom color format UI tweaks (#22790)

* Custom color format tweaks

* Delete vs. remove

* Update expect.txt

* [ColorPicker]Support BGR and RGB decimal value formats (#22771)

* ColorPicker add both decimal value formats

* ColorPicker, custom format dialog, resizing columns

* Custom color format tweaks

* Delete vs. remove

* Update expect.txt

* Fix rebase

* Fix error

src/settings-ui/Settings.UI/Converters/ColorFormatConverter.cs

@@ -0,0 +1,31 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using ManagedCommon;
+using Microsoft.PowerToys.Settings.UI.Library;
+using Microsoft.UI.Xaml.Data;
+
+namespace Microsoft.PowerToys.Settings.UI.Converters
+{
+    public sealed class ColorFormatConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+        {
+            if (value != null)
+            {
+                return ColorFormatHelper.GetStringRepresentation(null, (string)value);
+            }
+            else
+            {
+                return string.Empty;
+            }
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+        {
+            return value;
+        }
+    }
+}