diff --git a/app/controllers/api/v1/transactions_controller.rb b/app/controllers/api/v1/transactions_controller.rb
index 08ca81cee..4af4ca5c2 100644
--- a/app/controllers/api/v1/transactions_controller.rb
+++ b/app/controllers/api/v1/transactions_controller.rb
@@ -105,6 +105,16 @@ class Api::V1::TransactionsController < Api::V1::BaseController
 end
 
   def update
+    if @entry.split_child?
+      render json: { error: "validation_failed", message: "Split child transactions cannot be edited directly. Use the split editor." }, status: :unprocessable_entity
+      return
+    end
+
+    if @entry.split_parent? && split_financial_fields_changed?
+      render json: { error: "validation_failed", message: "Split parent amount, date, and type cannot be changed directly. Use the split editor." }, status: :unprocessable_entity
+      return
+    end
+
     Entry.transaction do
       if @entry.update(entry_params_for_update)
         # Handle tags separately - only when explicitly provided in the request
@@ -141,6 +151,11 @@ end
   end
 
   def destroy
+    if @entry.split_child?
+      render json: { error: "validation_failed", message: "Split child transactions cannot be deleted individually." }, status: :unprocessable_entity
+      return
+    end
+
     @entry.destroy!
     @entry.sync_account_later
 
@@ -313,6 +328,12 @@ end
       params[:transaction].key?(:tag_ids)
     end
 
+    def split_financial_fields_changed?
+      params.dig(:transaction, :amount).present? ||
+        params.dig(:transaction, :date).present? ||
+        params.dig(:transaction, :nature).present?
+    end
+
     def calculate_signed_amount
       amount = transaction_params[:amount].to_f
       nature = transaction_params[:nature]
diff --git a/app/controllers/settings/appearances_controller.rb b/app/controllers/settings/appearances_controller.rb
new file mode 100644
index 000000000..ae2282443
--- /dev/null
+++ b/app/controllers/settings/appearances_controller.rb
@@ -0,0 +1,18 @@
+class Settings::AppearancesController < ApplicationController
+  layout "settings"
+
+  def show
+    @user = Current.user
+  end
+
+  def update
+    @user = Current.user
+    @user.transaction do
+      @user.lock!
+      updated_prefs = (@user.preferences || {}).deep_dup
+      updated_prefs["show_split_grouped"] = params.dig(:user, :show_split_grouped) == "1"
+      @user.update!(preferences: updated_prefs)
+    end
+    redirect_to settings_appearance_path
+  end
+end
diff --git a/app/controllers/transactions_controller.rb b/app/controllers/transactions_controller.rb
index a1441439a..096c313e5 100644
--- a/app/controllers/transactions_controller.rb
+++ b/app/controllers/transactions_controller.rb
@@ -27,6 +27,30 @@ class TransactionsController < ApplicationController
 
     @pagy, @transactions = pagy(base_scope, limit: safe_per_page)
 
+    # Preload split parent data
+    entry_ids = @transactions.map { |t| t.entry.id }
+
+    # Load split parent entries for grouped display (only when grouping is enabled)
+    @split_parents = if Current.user.show_split_grouped?
+      split_parent_ids = @transactions.filter_map { |t| t.entry.parent_entry_id }.uniq
+      if split_parent_ids.any?
+        Entry.where(id: split_parent_ids)
+             .includes(:account, entryable: [ :category, :merchant ])
+             .index_by(&:id)
+      else
+        {}
+      end
+    else
+      {}
+    end
+
+    # Preload which entries on this page are split parents (have children) to avoid N+1
+    @split_parent_entry_ids = if entry_ids.any?
+      Entry.where(parent_entry_id: entry_ids).distinct.pluck(:parent_entry_id).to_set
+    else
+      Set.new
+    end
+
     # Load projected recurring transactions for next 10 days
     @projected_recurring = Current.family.recurring_transactions
                                   .active
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 252cd114d..fd0c33f6e 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -83,6 +83,8 @@ class UsersController < ApplicationController
         redirect_to goals_onboarding_path
       when "trial"
         redirect_to trial_onboarding_path
+      when "appearance"
+        redirect_to settings_appearance_path, notice: notice
       when "ai_prompts"
         redirect_to settings_ai_prompts_path, notice: notice
       else
diff --git a/app/helpers/entries_helper.rb b/app/helpers/entries_helper.rb
index 1c3340ae0..87a3fc571 100644
--- a/app/helpers/entries_helper.rb
+++ b/app/helpers/entries_helper.rb
@@ -1,4 +1,28 @@
 module EntriesHelper
+  SplitGroup = Data.define(:parent, :children)
+
+  def group_split_entries(entries, split_parents)
+    return entries if split_parents.blank?
+
+    result = []
+    seen_parent_ids = Set.new
+
+    entries.each do |entry|
+      if entry.split_child? && split_parents[entry.parent_entry_id]
+        parent_id = entry.parent_entry_id
+        next if seen_parent_ids.include?(parent_id)
+
+        seen_parent_ids.add(parent_id)
+        children = entries.select { |e| e.parent_entry_id == parent_id }
+        result << SplitGroup.new(parent: split_parents[parent_id], children: children)
+      else
+        result << entry
+      end
+    end
+
+    result
+  end
+
   def entries_by_date(entries, totals: false)
     transfer_groups = entries.group_by do |entry|
       # Only check for transfer if it's a transaction
diff --git a/app/helpers/settings_helper.rb b/app/helpers/settings_helper.rb
index 78364ab7b..79a3c248a 100644
--- a/app/helpers/settings_helper.rb
+++ b/app/helpers/settings_helper.rb
@@ -4,6 +4,7 @@ module SettingsHelper
     { name: "Accounts", path: :accounts_path },
     { name: "Bank Sync", path: :settings_bank_sync_path },
     { name: "Preferences", path: :settings_preferences_path },
+    { name: "Appearance", path: :settings_appearance_path },
     { name: "Profile Info", path: :settings_profile_path },
     { name: "Security", path: :settings_security_path },
     { name: "Payment", path: :settings_payment_path, condition: :not_self_hosted? },
diff --git a/app/javascript/controllers/split_transaction_controller.js b/app/javascript/controllers/split_transaction_controller.js
index e338368af..bce070bf6 100644
--- a/app/javascript/controllers/split_transaction_controller.js
+++ b/app/javascript/controllers/split_transaction_controller.js
@@ -143,13 +143,13 @@ export default class extends Controller {
     if (balanced) {
       this.remainingTarget.classList.remove("text-destructive")
       this.remainingTarget.classList.add("text-success")
-      container.classList.remove("border-destructive", "bg-red-25")
-      container.classList.add("border-green-200", "bg-green-25")
+      container.classList.remove("border-destructive", "bg-red-tint-10")
+      container.classList.add("border-green-200", "bg-green-tint-10")
     } else {
       this.remainingTarget.classList.remove("text-success")
       this.remainingTarget.classList.add("text-destructive")
-      container.classList.remove("border-green-200", "bg-green-25")
-      container.classList.add("border-destructive", "bg-red-25")
+      container.classList.remove("border-green-200", "bg-green-tint-10")
+      container.classList.add("border-destructive", "bg-red-tint-10")
     }
 
     this.errorTarget.classList.toggle("hidden", balanced)
diff --git a/app/models/entry.rb b/app/models/entry.rb
index 2ebb7d3d1..6c90114d2 100644
--- a/app/models/entry.rb
+++ b/app/models/entry.rb
@@ -21,6 +21,7 @@ class Entry < ApplicationRecord
   validates :external_id, uniqueness: { scope: [ :account_id, :source ] }, if: -> { external_id.present? && source.present? }
 
   validate :cannot_unexclude_split_parent
+  validate :split_child_date_matches_parent
 
   before_destroy :prevent_individual_child_deletion, if: :split_child?
 
@@ -423,10 +424,19 @@ class Entry < ApplicationRecord
 
       transaction do
         all.each do |entry|
+          changed = false
+
           # Update standard attributes
           if bulk_attributes.present?
-            bulk_attributes[:entryable_attributes][:id] = entry.entryable_id if bulk_attributes[:entryable_attributes].present?
-            entry.update! bulk_attributes
+            attrs = bulk_attributes.dup
+            attrs.delete(:date) if entry.split_child?
+
+            if attrs.present?
+              attrs[:entryable_attributes] = attrs[:entryable_attributes].dup if attrs[:entryable_attributes].present?
+              attrs[:entryable_attributes][:id] = entry.entryable_id if attrs[:entryable_attributes].present?
+              entry.update! attrs
+              changed = true
+            end
           end
 
           # Handle tags separately - only when explicitly requested
@@ -434,10 +444,13 @@ class Entry < ApplicationRecord
             entry.transaction.tag_ids = tag_ids
             entry.transaction.save!
             entry.entryable.lock_attr!(:tag_ids) if entry.transaction.tags.any?
+            changed = true
           end
 
-          entry.lock_saved_attributes!
-          entry.mark_user_modified!
+          if changed
+            entry.lock_saved_attributes!
+            entry.mark_user_modified!
+          end
         end
       end
 
@@ -453,6 +466,14 @@ class Entry < ApplicationRecord
       errors.add(:excluded, "cannot be toggled off for a split transaction")
     end
 
+    def split_child_date_matches_parent
+      return unless split_child? && date_changed?
+      return unless parent_entry.present?
+      return if date == parent_entry.date
+
+      errors.add(:date, "must match the parent transaction date for split children")
+    end
+
     def prevent_individual_child_deletion
       return if destroyed_by_association || unsplitting
 
diff --git a/app/models/user.rb b/app/models/user.rb
index 9c6a1882c..4cb17c6bd 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -316,6 +316,10 @@ class User < ApplicationRecord
     preferences&.dig("transactions_collapsed_sections", section_key) == true
   end
 
+  def show_split_grouped?
+    preferences&.dig("show_split_grouped") != false
+  end
+
   def update_transactions_preferences(prefs)
     transaction do
       lock!
diff --git a/app/views/category/dropdowns/show.html.erb b/app/views/category/dropdowns/show.html.erb
index 02ec05a7f..bdfc387eb 100644
--- a/app/views/category/dropdowns/show.html.erb
+++ b/app/views/category/dropdowns/show.html.erb
@@ -65,6 +65,16 @@
           <% end %>
         <% end %>
 
+        <% if @transaction.splittable? %>
+          <%= link_to new_transaction_split_path(@transaction.entry),
+                  class: "flex text-sm font-medium items-center gap-2 text-secondary w-full rounded-lg p-2 hover:bg-container-inset-hover",
+                  data: { turbo_frame: "modal" } do %>
+            <%= icon("split") %>
+
+            <p><%= t("splits.show.button") %></p>
+          <% end %>
+        <% end %>
+
         <div class="flex text-sm font-medium items-center gap-2 text-secondary w-full rounded-lg p-2">
           <div class="flex items-center gap-2">
             <%= form_with url: transaction_path(@transaction.entry),
diff --git a/app/views/entries/_split_group.html.erb b/app/views/entries/_split_group.html.erb
new file mode 100644
index 000000000..cf182f8be
--- /dev/null
+++ b/app/views/entries/_split_group.html.erb
@@ -0,0 +1,8 @@
+<%# locals: (split_group:) %>
+<div class="split-group">
+  <%= render "transactions/split_parent_row", entry: split_group.parent %>
+  <% split_group.children.each do |child_entry| %>
+    <%= render partial: child_entry.entryable.to_partial_path,
+              locals: { entry: child_entry, in_split_group: true } %>
+  <% end %>
+</div>
diff --git a/app/views/settings/_settings_nav.html.erb b/app/views/settings/_settings_nav.html.erb
index 90608e652..bc4f9dcd0 100644
--- a/app/views/settings/_settings_nav.html.erb
+++ b/app/views/settings/_settings_nav.html.erb
@@ -6,6 +6,7 @@ nav_sections = [
       { label: t(".accounts_label"), path: accounts_path, icon: "layers" },
       { label: t(".bank_sync_label"), path: settings_bank_sync_path, icon: "banknote" },
       { label: t(".preferences_label"), path: settings_preferences_path, icon: "bolt" },
+      { label: t(".appearance_label"), path: settings_appearance_path, icon: "palette" },
       { label: t(".profile_label"), path: settings_profile_path, icon: "circle-user" },
       { label: t(".security_label"), path: settings_security_path, icon: "shield-check" },
       { label: t(".payment_label"), path: settings_payment_path, icon: "circle-dollar-sign", if: !self_hosted? && Current.family.can_manage_subscription? }
diff --git a/app/views/settings/appearances/show.html.erb b/app/views/settings/appearances/show.html.erb
new file mode 100644
index 000000000..c2e9e703e
--- /dev/null
+++ b/app/views/settings/appearances/show.html.erb
@@ -0,0 +1,50 @@
+<%= content_for :page_title, t(".page_title") %>
+
+<%= settings_section title: t(".theme_title"), subtitle: t(".theme_subtitle") do %>
+  <div data-controller="theme" data-theme-user-preference-value="<%= @user.theme %>">
+    <%= form_with model: @user, class: "flex flex-col md:flex-row justify-between items-center gap-4", id: "theme_form",
+        data: { controller: "auto-submit-form", auto_submit_form_trigger_event_value: "change" } do |form| %>
+      <%= form.hidden_field :redirect_to, value: "appearance" %>
+
+      <% theme_option_class = "text-center transition-all duration-200 p-3 rounded-lg hover:bg-surface-hover cursor-pointer [&:has(input:checked)]:bg-surface-hover [&:has(input:checked)]:border [&:has(input:checked)]:border-primary [&:has(input:checked)]:shadow-xs" %>
+
+      <% [
+        { value: "light", image: "light-mode-preview.png" },
+        { value: "dark", image: "dark-mode-preview.png" },
+        { value: "system", image: "system-mode-preview.png" }
+      ].each do |theme| %>
+        <%= form.label :"theme_#{theme[:value]}", class: "group" do %>
+          <div class="<%= theme_option_class %>">
+            <%= image_tag(theme[:image], alt: "#{theme[:value].titleize} Theme Preview", class: "max-h-44 mb-2") %>
+            <div class="<%= theme[:value] == "system" ? "flex items-center gap-2 justify-center" : "text-sm font-medium text-primary" %>">
+              <%= form.radio_button :theme, theme[:value], checked: @user.theme == theme[:value], class: "sr-only",
+                data: { auto_submit_form_target: "auto", autosubmit_trigger_event: "change", action: "theme#updateTheme" } %>
+              <%= t(".theme_#{theme[:value]}") %>
+            </div>
+          </div>
+        <% end %>
+      <% end %>
+    <% end %>
+  </div>
+<% end %>
+
+<%= settings_section title: t(".transactions_title"), subtitle: t(".transactions_subtitle") do %>
+  <div>
+    <%= form_with url: settings_appearance_path, method: :patch,
+          class: "p-3",
+          data: { controller: "auto-submit-form" } do |f| %>
+      <div class="flex cursor-pointer items-center gap-4 justify-between">
+        <div class="text-sm space-y-1">
+          <h4 class="text-primary"><%= t(".split_grouped_title") %></h4>
+          <p class="text-secondary"><%= t(".split_grouped_description") %></p>
+        </div>
+        <%= render DS::Toggle.new(
+              id: "user_show_split_grouped",
+              name: "user[show_split_grouped]",
+              checked: @user.show_split_grouped?,
+              data: { auto_submit_form_target: "auto" }
+        ) %>
+      </div>
+    <% end %>
+  </div>
+<% end %>
diff --git a/app/views/settings/preferences/show.html.erb b/app/views/settings/preferences/show.html.erb
index a9f44e029..eee21b87e 100644
--- a/app/views/settings/preferences/show.html.erb
+++ b/app/views/settings/preferences/show.html.erb
@@ -56,31 +56,3 @@
     <% end %>
   </div>
 <% end %>
-
-<%= settings_section title: t(".theme_title"), subtitle: t(".theme_subtitle") do %>
-  <div data-controller="theme" data-theme-user-preference-value="<%= @user.theme %>">
-    <%= form_with model: @user, class: "flex flex-col md:flex-row justify-between items-center gap-4", id: "theme_form",
-        data: { controller: "auto-submit-form", auto_submit_form_trigger_event_value: "change" } do |form| %>
-      <%= form.hidden_field :redirect_to, value: "preferences" %>
-
-      <% theme_option_class = "text-center transition-all duration-200 p-3 rounded-lg hover:bg-surface-hover cursor-pointer [&:has(input:checked)]:bg-surface-hover [&:has(input:checked)]:border [&:has(input:checked)]:border-primary [&:has(input:checked)]:shadow-xs" %>
-
-      <% [
-        { value: "light", image: "light-mode-preview.png" },
-        { value: "dark", image: "dark-mode-preview.png" },
-        { value: "system", image: "system-mode-preview.png" }
-      ].each do |theme| %>
-        <%= form.label :"theme_#{theme[:value]}", class: "group" do %>
-          <div class="<%= theme_option_class %>">
-            <%= image_tag(theme[:image], alt: "#{theme[:value].titleize} Theme Preview", class: "max-h-44 mb-2") %>
-            <div class="<%= theme[:value] == "system" ? "flex items-center gap-2 justify-center" : "text-sm font-medium text-primary" %>">
-              <%= form.radio_button :theme, theme[:value], checked: @user.theme == theme[:value], class: "sr-only",
-                data: { auto_submit_form_target: "auto", autosubmit_trigger_event: "change", action: "theme#updateTheme" } %>
-              <%= t(".theme_#{theme[:value]}") %>
-            </div>
-          </div>
-        <% end %>
-      <% end %>
-    <% end %>
-  </div>
-<% end %>
diff --git a/app/views/splits/edit.html.erb b/app/views/splits/edit.html.erb
index a762df288..73afc37ac 100644
--- a/app/views/splits/edit.html.erb
+++ b/app/views/splits/edit.html.erb
@@ -86,7 +86,7 @@
       </button>
 
       <%# Remaining balance indicator %>
-      <div data-split-transaction-target="remainingContainer" class="p-3 rounded-lg border border-secondary text-sm">
+      <div data-split-transaction-target="remainingContainer" class="p-3 rounded-lg border border-secondary bg-container text-sm">
         <div class="flex items-center justify-between">
           <span class="text-secondary font-medium"><%= t("splits.new.remaining") %></span>
           <span data-split-transaction-target="remaining" class="font-semibold text-primary">
diff --git a/app/views/splits/new.html.erb b/app/views/splits/new.html.erb
index 8aae475b1..d4d101eaf 100644
--- a/app/views/splits/new.html.erb
+++ b/app/views/splits/new.html.erb
@@ -77,7 +77,7 @@
       </button>
 
       <%# Remaining balance indicator %>
-      <div data-split-transaction-target="remainingContainer" class="p-3 rounded-lg border border-destructive bg-red-25 text-sm">
+      <div data-split-transaction-target="remainingContainer" class="p-3 rounded-lg border border-destructive bg-red-tint-10 text-sm">
         <div class="flex items-center justify-between">
           <span class="text-secondary font-medium"><%= t("splits.new.remaining") %></span>
           <span data-split-transaction-target="remaining" class="font-semibold text-destructive">
diff --git a/app/views/transactions/_list.html.erb b/app/views/transactions/_list.html.erb
index 4c8d22713..8506bdf85 100644
--- a/app/views/transactions/_list.html.erb
+++ b/app/views/transactions/_list.html.erb
@@ -39,7 +39,19 @@
 
       <div class="space-y-6">
         <%= entries_by_date(@transactions.map(&:entry), totals: true) do |entries| %>
-            <%= render entries %>
+          <% if Current.user.show_split_grouped? %>
+            <% group_split_entries(entries, @split_parents).each do |item| %>
+              <% if item.is_a?(EntriesHelper::SplitGroup) %>
+                <%= render "entries/split_group", split_group: item %>
+              <% else %>
+                <%= render item %>
+              <% end %>
+            <% end %>
+          <% else %>
+            <% entries.each do |entry| %>
+              <%= render entry %>
+            <% end %>
+          <% end %>
         <% end %>
       </div>
     </div>
diff --git a/app/views/transactions/_split_parent_row.html.erb b/app/views/transactions/_split_parent_row.html.erb
new file mode 100644
index 000000000..70b44ebd2
--- /dev/null
+++ b/app/views/transactions/_split_parent_row.html.erb
@@ -0,0 +1,69 @@
+<%# locals: (entry:) %>
+<% transaction = entry.entryable %>
+
+<div class="group flex lg:grid lg:grid-cols-12 items-center text-sm font-medium p-3 lg:p-4 opacity-50 text-secondary">
+  <div class="pr-4 lg:pr-10 flex items-center gap-3 lg:gap-4 col-span-8 min-w-0">
+    <%# Empty space where checkbox would be, for alignment %>
+    <div class="hidden lg:block w-4 shrink-0"></div>
+
+    <div class="max-w-full">
+      <div class="flex items-center gap-3 lg:gap-4">
+        <div class="hidden lg:flex">
+          <% if transaction.merchant&.logo_url.present? %>
+            <%= image_tag Setting.transform_brand_fetch_url(transaction.merchant.logo_url),
+                class: "w-9 h-9 rounded-full border border-secondary",
+                loading: "lazy" %>
+          <% else %>
+            <div class="hidden lg:flex">
+              <%= render DS::FilledIcon.new(
+                variant: :text,
+                text: entry.name,
+                size: "lg",
+                rounded: true
+              ) %>
+            </div>
+          <% end %>
+        </div>
+
+        <div class="truncate">
+          <div class="space-y-0.5">
+            <div class="flex items-center gap-1 min-w-0">
+              <div class="truncate flex-shrink">
+                <%= link_to entry.name,
+                    entry_path(entry),
+                    data: { turbo_frame: "drawer", turbo_prefetch: false },
+                    class: "hover:underline" %>
+              </div>
+
+              <div class="flex items-center gap-1 flex-shrink-0">
+                <span class="inline-flex items-center gap-1 text-xs font-medium rounded-full px-1.5 py-0.5 border border-accent bg-accent/10 text-accent">
+                  <%= icon "split", size: "sm", color: "current" %>
+                  <%= t("transactions.split_parent_row.split_label") %>
+                </span>
+              </div>
+            </div>
+
+            <div class="text-secondary text-xs font-normal">
+              <% if transaction.merchant&.present? %>
+                <span class="hidden lg:inline truncate"><%= transaction.merchant.name %> • </span>
+              <% end %>
+              <span class="text-secondary hidden lg:inline">
+                <%= link_to entry.account.name,
+                    account_path(entry.account, tab: "transactions"),
+                    data: { turbo_frame: "_top" },
+                    class: "hover:underline" %>
+              </span>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <div class="hidden md:flex items-center gap-1 col-span-2">
+  </div>
+
+  <div class="shrink-0 col-span-4 lg:col-span-2 ml-auto flex items-center justify-end gap-2">
+    <%= content_tag :p, format_money(-entry.amount_money) %>
+  </div>
+</div>
diff --git a/app/views/transactions/_transaction.html.erb b/app/views/transactions/_transaction.html.erb
index 84ccb453b..db9f4c169 100644
--- a/app/views/transactions/_transaction.html.erb
+++ b/app/views/transactions/_transaction.html.erb
@@ -1,10 +1,10 @@
-<%# locals: (entry:, balance_trend: nil, view_ctx: "global") %>
+<%# locals: (entry:, balance_trend: nil, view_ctx: "global", in_split_group: false) %>
 
 <% transaction = entry.entryable %>
 
 <%= turbo_frame_tag dom_id(entry) do %>
   <%= turbo_frame_tag dom_id(transaction) do %>
-    <div class="group flex lg:grid lg:grid-cols-12 items-center text-primary text-sm font-medium p-3 lg:p-4 <%= entry.excluded ? "opacity-50 text-secondary" : "" %>">
+    <div class="group flex lg:grid lg:grid-cols-12 items-center text-primary text-sm font-medium p-3 lg:p-4 <%= entry.excluded ? "opacity-50 text-secondary" : "" %> <%= "pl-8 lg:pl-12" if in_split_group %>">
 
       <div class="pr-4 lg:pr-10 flex items-center gap-3 lg:gap-4 col-span-8 min-w-0">
         <%= check_box_tag dom_id(entry, "selection"),
@@ -102,13 +102,13 @@
                     <% end %>
 
                     <%# Split indicator %>
-                    <% if entry.split_parent? %>
+                    <% if @split_parent_entry_ids ? @split_parent_entry_ids.include?(entry.id) : entry.split_parent? %>
                       <span class="inline-flex items-center gap-1 text-xs font-medium rounded-full px-1.5 py-0.5 border border-accent bg-accent/10 text-accent" title="<%= t("transactions.transaction.split_tooltip") %>">
                         <%= icon "split", size: "sm", color: "current" %>
                         <%= t("transactions.transaction.split") %>
                       </span>
                     <% end %>
-                    <% if entry.split_child? %>
+                    <% if entry.split_child? && !in_split_group %>
                       <span class="text-secondary" title="<%= t("transactions.transaction.split_child_tooltip") %>">
                         <%= icon "corner-down-right", size: "sm", color: "current" %>
                       </span>
diff --git a/app/views/transactions/show.html.erb b/app/views/transactions/show.html.erb
index a42486d87..294e2c829 100644
--- a/app/views/transactions/show.html.erb
+++ b/app/views/transactions/show.html.erb
@@ -47,31 +47,33 @@
     <%= render "entries/protection_indicator", entry: @entry, unlock_path: unlock_transaction_path(@entry.transaction) %>
     <% dialog.with_section(title: t(".overview"), open: true) do %>
       <div>
+        <% split_locked = @entry.split_child? || @entry.split_parent? %>
         <%= styled_form_with model: @entry,
               url: transaction_path(@entry),
               class: "space-y-2",
               data: { controller: "auto-submit-form" } do |f| %>
           <%= f.text_field :name,
                 label: t(".name_label"),
+                disabled: @entry.split_child?,
                 "data-auto-submit-form-target": "auto" %>
           <%= f.date_field :date,
                 label: t(".date_label"),
                 max: Date.current,
-                disabled: @entry.linked?,
+                disabled: @entry.linked? || split_locked,
                 "data-auto-submit-form-target": "auto" %>
           <% unless @entry.transaction.transfer? %>
             <div class="flex items-center gap-2">
               <%= f.select :nature,
                     [["Expense", "outflow"], ["Income", "inflow"]],
                     { container_class: "w-1/3", label: t(".nature"), selected: @entry.amount.negative? ? "inflow" : "outflow" },
-                    { data: { "auto-submit-form-target": "auto" }, disabled: @entry.linked? } %>
+                    { data: { "auto-submit-form-target": "auto" }, disabled: @entry.linked? || split_locked } %>
               <%= f.money_field :amount, label: t(".amount"),
                     container_class: "w-2/3",
                     auto_submit: true,
                     min: 0,
                     value: @entry.amount.abs,
-                    disabled: @entry.linked?,
-                    disable_currency: @entry.linked? %>
+                    disabled: @entry.linked? || split_locked,
+                    disable_currency: @entry.linked? || split_locked %>
             </div>
             <%= f.fields_for :entryable do |ef| %>
               <%= ef.collection_select :category_id,
@@ -79,7 +81,7 @@
                     :id, :name,
                     { label: t(".category_label"),
                       class: "text-subdued", include_blank: t(".uncategorized"),
-                      variant: :badge, searchable: true },
+                      variant: :badge, searchable: true, disabled: @entry.split_child? },
                     "data-auto-submit-form-target": "auto" %>
             <% end %>
           <% end %>
@@ -105,14 +107,15 @@
                   :id, :name,
                   { include_blank: t(".none"),
                     label: t(".merchant_label"),
-                    class: "text-subdued", variant: :logo, searchable: true },
+                    class: "text-subdued", variant: :logo, searchable: true, disabled: @entry.split_child? },
                   "data-auto-submit-form-target": "auto" %>
             <%= ef.select :tag_ids,
                   Current.family.tags.alphabetically.pluck(:name, :id),
                   {
                     include_blank: t(".none"),
                     multiple: true,
-                    label:    t(".tags_label")
+                    label:    t(".tags_label"),
+                    disabled: @entry.split_child?
                   },
                   { "data-controller": "multi-select", "data-auto-submit-form-target": "auto" } %>
           <% end %>
@@ -121,6 +124,7 @@
                 label: t(".note_label"),
                 placeholder: t(".note_placeholder"),
                 rows: 5,
+                disabled: @entry.split_child?,
                 "data-auto-submit-form-target": "auto" %>
       <% end %>
     <% end %>
@@ -260,7 +264,7 @@
     <% end %>
 
     <% dialog.with_section(title: t(".settings")) do %>
-      <% unless @entry.split_parent? %>
+      <% unless @entry.split_parent? || @entry.split_child? %>
         <div class="pb-4">
           <%= styled_form_with model: @entry,
                 url: transaction_path(@entry),
@@ -301,40 +305,44 @@
           <% end %>
         </div>
       <% end %>
-      <div class="pb-4">
-        <%= styled_form_with model: @entry,
-              url: transaction_path(@entry),
-              class: "p-3",
-              data: { controller: "auto-submit-form" } do |f| %>
-          <%= f.fields_for :entryable do |ef| %>
-            <div class="flex cursor-pointer items-center gap-4 justify-between">
-              <div class="text-sm space-y-1">
-                <h4 class="text-primary"><%= t(".one_time_title", type: @entry.amount.negative? ? t("transactions.form.income") : t("transactions.form.expense")) %></h4>
-                <p class="text-secondary"><%= t(".one_time_description") %></p>
+      <% unless @entry.split_child? %>
+        <div class="pb-4">
+          <%= styled_form_with model: @entry,
+                url: transaction_path(@entry),
+                class: "p-3",
+                data: { controller: "auto-submit-form" } do |f| %>
+            <%= f.fields_for :entryable do |ef| %>
+              <div class="flex cursor-pointer items-center gap-4 justify-between">
+                <div class="text-sm space-y-1">
+                  <h4 class="text-primary"><%= t(".one_time_title", type: @entry.amount.negative? ? t("transactions.form.income") : t("transactions.form.expense")) %></h4>
+                  <p class="text-secondary"><%= t(".one_time_description") %></p>
+                </div>
+                <%= ef.toggle :kind, {
+                      checked: @entry.transaction.one_time?,
+                      data: { auto_submit_form_target: "auto" }
+                    }, "one_time", "standard" %>
               </div>
-              <%= ef.toggle :kind, {
-                    checked: @entry.transaction.one_time?,
-                    data: { auto_submit_form_target: "auto" }
-                  }, "one_time", "standard" %>
-            </div>
+            <% end %>
           <% end %>
-        <% end %>
-        <%# Split Transaction %>
-        <% if @entry.transaction.splittable? %>
-          <div class="flex items-center justify-between gap-4 p-3">
-            <div class="text-sm space-y-1">
-              <h4 class="text-primary"><%= t("splits.show.button_title") %></h4>
-              <p class="text-secondary"><%= t("splits.show.button_description") %></p>
-            </div>
-            <%= render DS::Link.new(
-              text: t("splits.show.button"),
-              icon: "split",
-              variant: "outline",
-              href: new_transaction_split_path(@entry),
-              frame: :modal
-            ) %>
+        </div>
+      <% end %>
+      <%# Split Transaction %>
+      <% if @entry.transaction.splittable? %>
+        <div class="flex items-center justify-between gap-4 p-3">
+          <div class="text-sm space-y-1">
+            <h4 class="text-primary"><%= t("splits.show.button_title") %></h4>
+            <p class="text-secondary"><%= t("splits.show.button_description") %></p>
           </div>
-        <% end %>
+          <%= render DS::Link.new(
+            text: t("splits.show.button"),
+            icon: "split",
+            variant: "outline",
+            href: new_transaction_split_path(@entry),
+            frame: :modal
+          ) %>
+        </div>
+      <% end %>
+      <% unless @entry.split_child? %>
         <div class="flex items-center justify-between gap-4 p-3">
           <div class="text-sm space-y-1">
             <h4 class="text-primary">Transfer or Debt Payment?</h4>
@@ -396,23 +404,24 @@
             frame: "_top"
           ) %>
         </div>
-        <%# Delete Transaction Form - hidden for split children %>
-        <% unless @entry.split_child? %>
-          <div class="flex items-center justify-between gap-2 p-3">
-            <div class="text-sm space-y-1">
-              <h4 class="text-primary"><%= t(".delete_title") %></h4>
-              <p class="text-secondary"><%= t(".delete_subtitle") %></p>
-            </div>
-            <%= render DS::Button.new(
-              text: t(".delete"),
-              variant: "outline-destructive",
-              href: entry_path(@entry),
-              method: :delete,
-              confirm: CustomConfirm.for_resource_deletion("transaction"),
-              frame: "_top"
-            ) %>
+      <% end %>
+      <%# Delete Transaction Form - hidden for split children %>
+      <% unless @entry.split_child? %>
+        <div class="flex items-center justify-between gap-2 p-3">
+          <div class="text-sm space-y-1">
+            <h4 class="text-primary"><%= t(".delete_title") %></h4>
+            <p class="text-secondary"><%= t(".delete_subtitle") %></p>
           </div>
-        <% end %>
+          <%= render DS::Button.new(
+            text: t(".delete"),
+            variant: "outline-destructive",
+            href: entry_path(@entry),
+            method: :delete,
+            confirm: CustomConfirm.for_resource_deletion("transaction"),
+            frame: "_top"
+          ) %>
+        </div>
+      <% end %>
       </div>
     <% end %>
   <% end %>
diff --git a/config/locales/views/settings/en.yml b/config/locales/views/settings/en.yml
index a4db0706a..d66cb7882 100644
--- a/config/locales/views/settings/en.yml
+++ b/config/locales/views/settings/en.yml
@@ -26,6 +26,18 @@ en:
         page_title: Payments
         subscription_subtitle: Update your credit card details
         subscription_title: Manage contributions
+    appearances:
+      show:
+        page_title: Appearance
+        theme_title: Theme
+        theme_subtitle: Choose a preferred theme for the app
+        theme_dark: Dark
+        theme_light: Light
+        theme_system: System
+        transactions_title: Transactions
+        transactions_subtitle: Customize how transactions are displayed
+        split_grouped_title: Group split transactions
+        split_grouped_description: Show split transactions grouped under their parent in the transaction list. When off, split children appear as individual rows.
     preferences:
       show:
         country: Country
@@ -38,11 +50,6 @@ en:
         language: Language
         language_auto: Browser language
         page_title: Preferences
-        theme_dark: Dark
-        theme_light: Light
-        theme_subtitle: Choose a preferred theme for the app
-        theme_system: System
-        theme_title: Theme
         timezone: Timezone
         month_start_day: Budget month starts on
         month_start_day_hint: Set when your budget month starts (e.g., payday)
@@ -142,6 +149,7 @@ en:
       transactions_section_title: Transactions
       whats_new_label: What's new
       api_keys_label: API Key
+      appearance_label: Appearance
       bank_sync_label: Bank Sync
     settings_nav_link_large:
       next: Next
diff --git a/config/locales/views/transactions/en.yml b/config/locales/views/transactions/en.yml
index bd91c1c16..836aabff3 100644
--- a/config/locales/views/transactions/en.yml
+++ b/config/locales/views/transactions/en.yml
@@ -81,6 +81,8 @@ en:
     potential_duplicate_description: This pending transaction may be the same as the posted transaction below. If so, merge them to avoid double-counting.
     merge_duplicate: Yes, merge them
     keep_both: No, keep both
+    split_parent_row:
+      split_label: "Split"
     transaction:
       pending: Pending
       pending_tooltip: Pending transaction — may change when posted
diff --git a/config/routes.rb b/config/routes.rb
index 017c15897..14eca4b64 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -167,6 +167,7 @@ Rails.application.routes.draw do
   namespace :settings do
     resource :profile, only: [ :show, :destroy ]
     resource :preferences, only: :show
+    resource :appearance, only: %i[show update]
     resource :hosting, only: %i[show update] do
       delete :clear_cache, on: :collection
       delete :disconnect_external_assistant, on: :collection