diff --git a/ManagerServer/HttpHandlers/Businesses/Business/NakedObjectsOfPendingRecurringTransactions.cs b/ManagerServer/HttpHandlers/Businesses/Business/NakedObjectsOfPendingRecurringTransactions.cs
index 056623d..12898cf 100644
--- a/ManagerServer/HttpHandlers/Businesses/Business/NakedObjectsOfPendingRecurringTransactions.cs
+++ b/ManagerServer/HttpHandlers/Businesses/Business/NakedObjectsOfPendingRecurringTransactions.cs
@@ -65,6 +65,15 @@ protected override async Task InnerPost()
                             Copy(recurringTransaction, transaction);
                             transaction.Date = recurringTransaction.NextIssueDate.Value;
 
+                            // Copy() only matches members by name, but each recurring transaction type exposes its own
+                            // uniquely-named custom theme fields (e.g. HasPurchaseInvoiceCustomTheme), so this must be
+                            // bridged explicitly via the shared IHasCustomTheme interface.
+                            if (recurringTransaction is ManagerServer.Model.IHasCustomTheme recurringCustomTheme && transaction is ManagerServer.Model.IHasCustomTheme transactionCustomTheme)
+                            {
+                                transactionCustomTheme.CustomTheme = recurringCustomTheme.CustomTheme;
+                                transactionCustomTheme.CustomThemeId = recurringCustomTheme.CustomThemeId;
+                            }
+
                             ((ManagerServer.Model.Object)transaction).Key = Guid.CreateVersion7();
                             list.Add((ManagerServer.Model.Object)transaction);
 
diff --git a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseInvoices/RecurringPurchaseInvoiceForm.cs b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseInvoices/RecurringPurchaseInvoiceForm.cs
index a2ecdc2..fb58b0d 100644
--- a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseInvoices/RecurringPurchaseInvoiceForm.cs
+++ b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseInvoices/RecurringPurchaseInvoiceForm.cs
@@ -17,6 +17,14 @@ protected override void OnSource(RecurringPurchaseInvoice form, ManagerServer.Mo
             if (source is PurchaseInvoice purchaseInvoice)
             {
                 Copy(purchaseInvoice, form);
+
+                // Copy() only matches members by name; PurchaseInvoice exposes CustomTheme/CustomThemeId
+                // while this form exposes its own uniquely-named fields, so bridge via IHasCustomTheme.
+                if (purchaseInvoice is IHasCustomTheme sourceCustomTheme)
+                {
+                    form.HasPurchaseInvoiceCustomTheme = sourceCustomTheme.CustomTheme;
+                    form.PurchaseInvoiceCustomTheme = sourceCustomTheme.CustomThemeId;
+                }
             }
         }
     }
diff --git a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseOrders/RecurringPurchaseOrderForm.cs b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseOrders/RecurringPurchaseOrderForm.cs
index 83b10f8..83af490 100644
--- a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseOrders/RecurringPurchaseOrderForm.cs
+++ b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringPurchaseOrders/RecurringPurchaseOrderForm.cs
@@ -16,6 +16,14 @@ protected override void OnSource(ManagerServer.Model.RecurringPurchaseOrder form
             if (source is ManagerServer.Model.PurchaseOrder purchaseOrder)
             {
                 Copy(purchaseOrder, form);
+
+                // Copy() only matches members by name; PurchaseOrder exposes CustomTheme/CustomThemeId
+                // while this form exposes its own uniquely-named fields, so bridge via IHasCustomTheme.
+                if (purchaseOrder is ManagerServer.Model.IHasCustomTheme sourceCustomTheme)
+                {
+                    form.HasPurchaseOrderCustomTheme = sourceCustomTheme.CustomTheme;
+                    form.PurchaseOrderCustomTheme = sourceCustomTheme.CustomThemeId;
+                }
             }
         }
     }
diff --git a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesInvoices/RecurringSalesInvoiceForm.cs b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesInvoices/RecurringSalesInvoiceForm.cs
index 0ffce4c..f5d3e59 100644
--- a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesInvoices/RecurringSalesInvoiceForm.cs
+++ b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesInvoices/RecurringSalesInvoiceForm.cs
@@ -17,6 +17,14 @@ protected override void OnSource(RecurringSalesInvoice form, ManagerServer.Model
             if (source is SalesInvoice salesInvoice)
             {
                 Copy(salesInvoice, form);
+
+                // Copy() only matches members by name; SalesInvoice exposes CustomTheme/CustomThemeId
+                // while this form exposes its own uniquely-named fields, so bridge via IHasCustomTheme.
+                if (salesInvoice is IHasCustomTheme sourceCustomTheme)
+                {
+                    form.HasSalesInvoiceCustomTheme = sourceCustomTheme.CustomTheme;
+                    form.SalesInvoiceCustomTheme = sourceCustomTheme.CustomThemeId;
+                }
             }
         }
     }
diff --git a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesOrders/RecurringSalesOrderForm.cs b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesOrders/RecurringSalesOrderForm.cs
index 4844598..7fd0902 100644
--- a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesOrders/RecurringSalesOrderForm.cs
+++ b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesOrders/RecurringSalesOrderForm.cs
@@ -16,6 +16,14 @@ protected override void OnSource(ManagerServer.Model.RecurringSalesOrder form, M
             if (source is ManagerServer.Model.SalesOrder salesOrder)
             {
                 Copy(salesOrder, form);
+
+                // Copy() only matches members by name; SalesOrder exposes CustomTheme/CustomThemeId
+                // while this form exposes its own uniquely-named fields, so bridge via IHasCustomTheme.
+                if (salesOrder is ManagerServer.Model.IHasCustomTheme sourceCustomTheme)
+                {
+                    form.HasSalesOrderCustomTheme = sourceCustomTheme.CustomTheme;
+                    form.SalesOrderCustomTheme = sourceCustomTheme.CustomThemeId;
+                }
             }
         }
     }
diff --git a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesQuotes/RecurringSalesQuoteForm.cs b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesQuotes/RecurringSalesQuoteForm.cs
index 6ead293..66f0636 100644
--- a/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesQuotes/RecurringSalesQuoteForm.cs
+++ b/ManagerServer/HttpHandlers/Businesses/Business/Settings/RecurringTransactions/RecurringSalesQuotes/RecurringSalesQuoteForm.cs
@@ -21,6 +21,14 @@ protected override void OnSource(ManagerServer.Model.RecurringSalesQuote form, M
             if (source is ManagerServer.Model.SalesQuote salesQuote)
             {
                 Copy(salesQuote, form);
+
+                // Copy() only matches members by name; SalesQuote exposes CustomTheme/CustomThemeId
+                // while this form exposes its own uniquely-named fields, so bridge via IHasCustomTheme.
+                if (salesQuote is ManagerServer.Model.IHasCustomTheme sourceCustomTheme)
+                {
+                    form.HasSalesQuoteCustomTheme = sourceCustomTheme.CustomTheme;
+                    form.SalesQuoteCustomTheme = sourceCustomTheme.CustomThemeId;
+                }
             }
         }
     }
diff --git a/ManagerServer/Model/RecurringPurchaseInvoice.cs b/ManagerServer/Model/RecurringPurchaseInvoice.cs
index 53eee9c..352fd39 100644
--- a/ManagerServer/Model/RecurringPurchaseInvoice.cs
+++ b/ManagerServer/Model/RecurringPurchaseInvoice.cs
@@ -15,7 +15,7 @@ namespace ManagerServer.Model
     [ProtoContract]
     [Guid("11de04ac-c448-4665-b206-8aa631e63532")]
     [Currency(nameof(Supplier))]
-    public sealed class RecurringPurchaseInvoice : Object, IRecurringTransactionFor<PurchaseInvoice>, ICustomFields
+    public sealed class RecurringPurchaseInvoice : Object, IRecurringTransactionFor<PurchaseInvoice>, ICustomFields, IHasCustomTheme
     {
         [Guide("The date when the next purchase invoice will be automatically created. This date advances automatically based on your frequency settings.")]
         [Guide("Set this to match when you expect to receive the supplier's invoice. The system checks daily for invoices due to be created.")]
@@ -80,6 +80,9 @@ public sealed class RecurringPurchaseInvoice : Object, IRecurringTransactionFor<
 
         MonthDay IRecurringTransaction.MonthDay => MonthDay;
 
+        bool IHasCustomTheme.CustomTheme { get => HasPurchaseInvoiceCustomTheme; set => HasPurchaseInvoiceCustomTheme = value; }
+        Guid? IHasCustomTheme.CustomThemeId { get => PurchaseInvoiceCustomTheme; set => PurchaseInvoiceCustomTheme = value; }
+
         /*
         [ProtoContract]
         public sealed class Line
diff --git a/ManagerServer/Model/RecurringPurchaseOrder.cs b/ManagerServer/Model/RecurringPurchaseOrder.cs
index 6cc22b7..0f33957 100644
--- a/ManagerServer/Model/RecurringPurchaseOrder.cs
+++ b/ManagerServer/Model/RecurringPurchaseOrder.cs
@@ -15,7 +15,7 @@ namespace ManagerServer.Model
     [ProtoContract]
     [Guid("3be38758-7bf2-46f1-84a5-34e8748cade0")]
     [Currency(nameof(Supplier))]
-    public sealed class RecurringPurchaseOrder : Object, IRecurringTransactionFor<PurchaseOrder>, ICustomFields
+    public sealed class RecurringPurchaseOrder : Object, IRecurringTransactionFor<PurchaseOrder>, ICustomFields, IHasCustomTheme
     {
         [Guide("The date when the next purchase order will be automatically created. This date advances automatically based on the interval and period type after each order is generated.")]
         [ProtoMember(1), NoWrap] public DateTime? NextIssueDate { get; set; }
@@ -66,5 +66,8 @@ public sealed class RecurringPurchaseOrder : Object, IRecurringTransactionFor<Pu
         CustomFields ICustomFields.CustomFields => CustomFields2;
 
         MonthDay IRecurringTransaction.MonthDay => MonthDay;
+
+        bool IHasCustomTheme.CustomTheme { get => HasPurchaseOrderCustomTheme; set => HasPurchaseOrderCustomTheme = value; }
+        Guid? IHasCustomTheme.CustomThemeId { get => PurchaseOrderCustomTheme; set => PurchaseOrderCustomTheme = value; }
     }
 }
\ No newline at end of file
diff --git a/ManagerServer/Model/RecurringSalesInvoice.cs b/ManagerServer/Model/RecurringSalesInvoice.cs
index 2cbed6c..ccfeee4 100644
--- a/ManagerServer/Model/RecurringSalesInvoice.cs
+++ b/ManagerServer/Model/RecurringSalesInvoice.cs
@@ -16,7 +16,7 @@ namespace ManagerServer.Model
     [ProtoContract]
     [Guid("81385989-81e5-48c7-a819-c344324c1c01")]
     [Currency(nameof(Customer))]
-    public sealed class RecurringSalesInvoice : Object, IRecurringTransactionFor<SalesInvoice>, ICustomFields
+    public sealed class RecurringSalesInvoice : Object, IRecurringTransactionFor<SalesInvoice>, ICustomFields, IHasCustomTheme
     {
         [Guide("The date when the next sales invoice will be automatically created. This date advances automatically based on your frequency settings.")]
         [Guide("The system checks daily for recurring transactions due to be created. Set this to today or earlier to create the first invoice immediately.")]
@@ -96,6 +96,9 @@ public sealed class RecurringSalesInvoice : Object, IRecurringTransactionFor<Sal
 
         MonthDay IRecurringTransaction.MonthDay => MonthDay;
 
+        bool IHasCustomTheme.CustomTheme { get => HasSalesInvoiceCustomTheme; set => HasSalesInvoiceCustomTheme = value; }
+        Guid? IHasCustomTheme.CustomThemeId { get => SalesInvoiceCustomTheme; set => SalesInvoiceCustomTheme = value; }
+
         /*
         [ProtoContract]
         public sealed class Line
diff --git a/ManagerServer/Model/RecurringSalesOrder.cs b/ManagerServer/Model/RecurringSalesOrder.cs
index 02a389a..e55cecd 100644
--- a/ManagerServer/Model/RecurringSalesOrder.cs
+++ b/ManagerServer/Model/RecurringSalesOrder.cs
@@ -15,7 +15,7 @@ namespace ManagerServer.Model
     [ProtoContract]
     [Guid("dd7d5b17-c4be-4369-b0f5-79361525f3c2")]
     [Currency(nameof(Customer))]
-    public sealed class RecurringSalesOrder : ManagerServer.Model.Object, IRecurringTransactionFor<SalesOrder>, ICustomFields
+    public sealed class RecurringSalesOrder : ManagerServer.Model.Object, IRecurringTransactionFor<SalesOrder>, ICustomFields, IHasCustomTheme
     {
         [Guide("The date when the next sales order will be automatically created. This date advances automatically based on the interval and period type after each order is generated.")]
         [ProtoMember(1), NoWrap] public DateTime? NextIssueDate { get; set; }
@@ -70,5 +70,8 @@ public sealed class RecurringSalesOrder : ManagerServer.Model.Object, IRecurring
         CustomFields ICustomFields.CustomFields => CustomFields2;
 
         MonthDay IRecurringTransaction.MonthDay => MonthDay;
+
+        bool IHasCustomTheme.CustomTheme { get => HasSalesOrderCustomTheme; set => HasSalesOrderCustomTheme = value; }
+        Guid? IHasCustomTheme.CustomThemeId { get => SalesOrderCustomTheme; set => SalesOrderCustomTheme = value; }
     }
 }
\ No newline at end of file
diff --git a/ManagerServer/Model/RecurringSalesQuote.cs b/ManagerServer/Model/RecurringSalesQuote.cs
index 9e5f9d8..b496e23 100644
--- a/ManagerServer/Model/RecurringSalesQuote.cs
+++ b/ManagerServer/Model/RecurringSalesQuote.cs
@@ -15,7 +15,7 @@ namespace ManagerServer.Model
     [ProtoContract]
     [Guid("1ca6ee3a-3583-41d8-83b1-74ac9129e1c1")]
     [Currency(nameof(Customer))]
-    public sealed class RecurringSalesQuote : ManagerServer.Model.Object, IRecurringTransactionFor<SalesQuote>, ICustomFields
+    public sealed class RecurringSalesQuote : ManagerServer.Model.Object, IRecurringTransactionFor<SalesQuote>, ICustomFields, IHasCustomTheme
     {
         [Guide("The date when the next sales quote will be automatically created. This date advances automatically based on the interval and period type after each quote is generated.")]
         [ProtoMember(1), NoWrap] public DateTime? NextIssueDate { get; set; }
@@ -72,5 +72,8 @@ public sealed class RecurringSalesQuote : ManagerServer.Model.Object, IRecurring
         CustomFields ICustomFields.CustomFields => CustomFields2;
 
         MonthDay IRecurringTransaction.MonthDay => MonthDay;
+
+        bool IHasCustomTheme.CustomTheme { get => HasSalesQuoteCustomTheme; set => HasSalesQuoteCustomTheme = value; }
+        Guid? IHasCustomTheme.CustomThemeId { get => SalesQuoteCustomTheme; set => SalesQuoteCustomTheme = value; }
     }
 }