History: the panel menu has Step Backward, Step Forward and Set History Limit…

The History panel menu held only a disabled History Options… item. The
reference app's History panel menu has Step Backward and Step Forward,
which undo and redo a change, and Set History Limit, which sets the
number of History States.

The panel menu now has Step Backward and Step Forward. They run
edit.undo and edit.redo, and each is disabled when there is no step to
undo or redo, as Edit › Undo and Edit › Redo are. Set History Limit…
opens Preferences at Performance, where History States is set.

Docs: docs/target-app-parity.md.

crates/ui-egui/src/i18n/bg.tsv

@@ -1321,6 +1321,9 @@
 	Highlight Substituted Glyphs	Маркиране на заменени глифи
 	History	История
 	History Options…	Опции за историята…
+	Step Backward	Стъпка назад
+	Step Forward	Стъпка напред
+	Set History Limit…	Задаване на ограничение на историята…
 	History States	Състояния на историята
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Прилагане на набор от данни

crates/ui-egui/src/i18n/cs.tsv

@@ -1514,6 +1514,9 @@ lighting	Light	Světlo
 	Use Text for Previews	Náhledy na textu
 	{percent}% opacity	krytí {percent} %
 	History Options…	Možnosti historie…
+	Step Backward	Krok zpět
+	Step Forward	Krok vpřed
+	Set History Limit…	Nastavit limit historie…
 	Open a document to see its history.	Otevřete dokument, abyste viděli jeho historii.
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Použít sadu dat

crates/ui-egui/src/i18n/da.tsv

@@ -1435,6 +1435,9 @@ lighting	Light	Lys
 	Use Text for Previews	Brug tekst til forhåndsvisninger
 	{percent}% opacity	{percent}% opacitet
 	History Options…	Indstillinger for historik…
+	Step Backward	Et trin tilbage
+	Step Forward	Et trin frem
+	Set History Limit…	Angiv historikgrænse…
 	Open a document to see its history.	Åbn et dokument for at se dets historik.
 	Abutting	Stødende
 	Black and White	Sort-hvid

crates/ui-egui/src/i18n/de.tsv

@@ -1339,6 +1339,9 @@ file-filter	Templates	Vorlagen
 	Highlight Substituted Glyphs	Ersetzte Glyphen hervorheben
 	History	Protokoll
 	History Options…	Protokolloptionen…
+	Step Backward	Schritt zurück
+	Step Forward	Schritt vorwärts
+	Set History Limit…	Protokollgrenze festlegen…
 	History States	Protokollschritte
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Datensatz anwenden

crates/ui-egui/src/i18n/el.tsv

@@ -1284,6 +1284,9 @@
 	Highlight Substituted Glyphs	Επισήμανση υποκατεστημένων γλύφων
 	History	Ιστορικό
 	History Options…	Επιλογές ιστορικού…
+	Step Backward	Ένα βήμα πίσω
+	Step Forward	Ένα βήμα εμπρός
+	Set History Limit…	Ορισμός ορίου ιστορικού…
 	History States	Καταστάσεις ιστορικού
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Εφαρμογή συνόλου δεδομένων

crates/ui-egui/src/i18n/es.tsv

@@ -1347,6 +1347,9 @@
 	Highlight Substituted Glyphs	Resaltar glifos sustituidos
 	History	Historial
 	History Options…	Opciones de historial…
+	Step Backward	Paso atrás
+	Step Forward	Paso adelante
+	Set History Limit…	Definir límite de historial…
 	History States	Estados de historial
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Aplicar conjunto de datos

crates/ui-egui/src/i18n/fi.tsv

@@ -1488,6 +1488,9 @@ lighting	Light	Valo
 	Use Text for Previews	Käytä tekstiä esikatseluissa
 	{percent}% opacity	{percent}% peittävyys
 	History Options…	Historian asetukset…
+	Step Backward	Askel taaksepäin
+	Step Forward	Askel eteenpäin
+	Set History Limit…	Aseta historian raja…
 	Open a document to see its history.	Avaa asiakirja, niin näet sen historian.
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Käytä tietojoukkoa

crates/ui-egui/src/i18n/fr.tsv

@@ -1346,6 +1346,9 @@
 	Highlight Substituted Glyphs	Surligner les glyphes remplacés
 	History	Historique
 	History Options…	Options d’historique…
+	Step Backward	Pas en arrière
+	Step Forward	Pas en avant
+	Set History Limit…	Définir la limite de l’historique…
 	History States	États de l’historique
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Appliquer le jeu de données

crates/ui-egui/src/i18n/hu.tsv

@@ -1720,6 +1720,9 @@ file-filter	Templates	Sablonok
 	Hindi	Hindi
 	History	Előzmények
 	History Options…	Előzmények beállításai…
+	Step Backward	Lépés vissza
+	Step Forward	Lépés előre
+	Set History Limit…	Előzménykorlát beállítása…
 	History States	Előzmények lépésszáma
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Adatkészlet alkalmazása

crates/ui-egui/src/i18n/id.tsv

@@ -1435,6 +1435,9 @@ lighting	Light	Cahaya
 	Use Text for Previews	Gunakan teks untuk pratinjau
 	{percent}% opacity	Opasitas {percent}%
 	History Options…	Opsi riwayat…
+	Step Backward	Mundur satu langkah
+	Step Forward	Maju satu langkah
+	Set History Limit…	Atur batas riwayat…
 	Open a document to see its history.	Buka dokumen untuk melihat riwayatnya.
 	Abutting	Bersinggungan
 	Black and White	Hitam dan putih

crates/ui-egui/src/i18n/it.tsv

@@ -1356,6 +1356,9 @@ file-filter	Templates	Modelli
 	Highlight Substituted Glyphs	Evidenzia glifi sostituiti
 	History	Cronologia
 	History Options…	Opzioni cronologia…
+	Step Backward	Passo indietro
+	Step Forward	Passo avanti
+	Set History Limit…	Imposta limite cronologia…
 	History States	Stati cronologia
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Applica set di dati

crates/ui-egui/src/i18n/ja.tsv

@@ -1601,6 +1601,9 @@
 	Highlight Substituted Glyphs	置換字形をハイライト
 	Highlight anchors on mouse over	マウスオーバー時にアンカーをハイライト
 	History Options…	ヒストリーオプション…
+	Step Backward	一段階戻る
+	Step Forward	一段階進む
+	Set History Limit…	ヒストリーの上限を設定…
 	History States	ヒストリー数
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	データセットを適用

crates/ui-egui/src/i18n/ko.tsv

@@ -1596,6 +1596,9 @@
 	Highlight Substituted Glyphs	대체된 글리프 강조 표시
 	Highlight anchors on mouse over	마우스를 올리면 앵커 강조 표시
 	History Options…	히스토리 옵션…
+	Step Backward	한 단계 뒤로
+	Step Forward	한 단계 앞으로
+	Set History Limit…	히스토리 한도 설정…
 	History States	히스토리 상태
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	데이터 세트 적용

crates/ui-egui/src/i18n/nl.tsv

@@ -1449,6 +1449,9 @@ lighting	Light	Licht
 	Use Text for Previews	Tekst gebruiken voor voorbeelden
 	{percent}% opacity	{percent}% dekking
 	History Options…	Historieopties…
+	Step Backward	Stap terug
+	Step Forward	Stap vooruit
+	Set History Limit…	Historielimiet instellen…
 	Open a document to see its history.	Open een document om de historie te zien.
 	Abutting	Aaneengesloten
 	Black and White	Zwart-wit

crates/ui-egui/src/i18n/pl.tsv

@@ -1428,6 +1428,9 @@ lighting	Light	Światło
 	Use Text for Previews	Użyj tekstu w podglądach
 	{percent}% opacity	Krycie {percent}%
 	History Options…	Opcje historii…
+	Step Backward	Krok wstecz
+	Step Forward	Krok naprzód
+	Set History Limit…	Ustaw limit historii…
 	Open a document to see its history.	Otwórz dokument, aby zobaczyć jego historię.
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Zastosuj zestaw danych

crates/ui-egui/src/i18n/pt-br.tsv

@@ -1161,6 +1161,9 @@
 	Highlight anchors on mouse over	Realçar pontos de ancoragem ao passar o mouse
 	History	Histórico
 	History Options…	Opções do Histórico…
+	Step Backward	Voltar um Passo
+	Step Forward	Avançar um Passo
+	Set History Limit…	Definir Limite do Histórico…
 	History States	Estados do Histórico
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Aplicar Conjunto de Dados

crates/ui-egui/src/i18n/ru.tsv

@@ -1354,6 +1354,9 @@ file-filter	Templates	Шаблоны
 	Highlight Substituted Glyphs	Выделять заменённые глифы
 	History	История
 	History Options…	Параметры истории…
+	Step Backward	Шаг назад
+	Step Forward	Шаг вперёд
+	Set History Limit…	Задать предел истории…
 	History States	Состояния истории
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Применить набор данных

crates/ui-egui/src/i18n/sv.tsv

@@ -1323,6 +1323,9 @@
 	Highlight Substituted Glyphs	Framhäv ersatta glyfer
 	History	Historik
 	History Options…	Historikalternativ…
+	Step Backward	Stega bakåt
+	Step Forward	Stega framåt
+	Set History Limit…	Ange historikgräns…
 	History States	Historiktillstånd
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Använd datauppsättning

crates/ui-egui/src/i18n/uk.tsv

@@ -1350,6 +1350,9 @@ file-filter	Templates	Шаблони
 	Highlight Substituted Glyphs	Виділяти замінені гліфи
 	History	Історія
 	History Options…	Параметри історії…
+	Step Backward	Крок назад
+	Step Forward	Крок вперед
+	Set History Limit…	Задати межу історії…
 	History States	Стан історії
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Застосувати набір даних

crates/ui-egui/src/i18n/vi.tsv

@@ -1549,6 +1549,9 @@ file-filter	Templates	Mẫu
 	Hindi	Hindi
 	History	Lịch sử
 	History Options…	Tùy chọn lịch sử…
+	Step Backward	Lùi một bước
+	Step Forward	Tiến một bước
+	Set History Limit…	Đặt giới hạn lịch sử…
 	History States	Trạng thái lịch sử
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	Áp dụng tập dữ liệu

crates/ui-egui/src/i18n/zh-hans.tsv

@@ -1298,6 +1298,9 @@ file-filter	Templates	模板
 	Highlight Substituted Glyphs	突出显示替代字形
 	History	历史记录
 	History Options…	历史记录选项…
+	Step Backward	后退一步
+	Step Forward	前进一步
+	Set History Limit…	设置历史记录上限…
 	History States	历史记录步数
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	应用数据集

crates/ui-egui/src/i18n/zh-hant.tsv

@@ -1328,6 +1328,9 @@ file-filter	Templates	範本
 	Highlight Substituted Glyphs	醒目提示被取代的字符
 	History	步驟記錄
 	History Options…	步驟記錄選項…
+	Step Backward	後退一步
+	Step Forward	前進一步
+	Set History Limit…	設定步驟記錄上限…
 	History States	步驟記錄狀態
 # History panel: the names of undo steps (`every_undo_label_is_translated`).
 	Apply Data Set	套用資料集

crates/ui-egui/src/panels/history.rs

@@ -75,7 +75,16 @@ pub fn show(app: &mut VectorcraftApp, ui: &mut Ui) {
     }
 }
 
-pub fn menu(_app: &mut VectorcraftApp, ui: &mut Ui) {
+pub fn menu(app: &mut VectorcraftApp, ui: &mut Ui) {
+    for (label, cmd) in [(tl!("Step Backward"), "edit.undo"), (tl!("Step Forward"), "edit.redo")] {
+        if menu_item(ui, label, crate::menus::enabled(app, cmd), false) {
+            crate::menus::invoke(app, cmd, json!({}));
+        }
+    }
+    ui.separator();
+    if menu_item(ui, tl!("Set History Limit…"), true, false) {
+        crate::menus::invoke(app, "edit.preferences", json!({ "category": "Performance" }));
+    }
     menu_item(ui, tl!("History Options…"), false, false);
 }
 
@@ -99,4 +108,89 @@ mod tests {
         assert_eq!(step_name(ja, "Feather").as_deref(), Some("ぼかし"));
         assert_eq!(step_name(ja, "No Such Step"), None);
     }
+
+    fn app_with_two_rectangles() -> VectorcraftApp {
+        let mut app = VectorcraftApp::new(vectorcraft_engine::Session::new(), Default::default());
+        app.session.execute("file.new", &json!({"width": 200, "height": 150})).unwrap();
+        for x in [10, 60] {
+            app.session.execute("shape.rectangle", &json!({"x": x, "y": 10, "width": 20, "height": 20})).unwrap();
+        }
+        app
+    }
+
+    /// Returns the number of steps to undo and to redo.
+    fn depth(app: &VectorcraftApp) -> (usize, usize) {
+        let h = &app.session.active().unwrap().history;
+        (h.undo.len(), h.redo.len())
+    }
+
+    /// Clicks the panel menu's item labeled `label`.
+    fn click(app: &mut VectorcraftApp, label: &str) {
+        let ctx = egui::Context::default();
+        let screen = Some(egui::Rect::from_min_size(egui::Pos2::ZERO, vec2(240.0, 400.0)));
+        let frame = |app: &mut VectorcraftApp, events: Vec<egui::Event>| {
+            let mut out = ctx.run_ui(egui::RawInput { events, screen_rect: screen, ..Default::default() }, |ui| menu(app, ui));
+            out.textures_delta.clear();
+            out.shapes
+        };
+        let item = frame(app, vec![])
+            .iter()
+            .find_map(|c| match &c.shape {
+                egui::Shape::Text(t) if t.galley.text().trim_start() == label => Some(t.visual_bounding_rect().center()),
+                _ => None,
+            })
+            .unwrap_or_else(|| panic!("no `{label}` in the panel menu"));
+        let button = |pressed| egui::Event::PointerButton { pos: item, button: egui::PointerButton::Primary, pressed, modifiers: Default::default() };
+        frame(app, vec![egui::Event::PointerMoved(item), button(true), button(false)]);
+    }
+
+    /// The panel menu's Step Backward undoes one step and Step Forward redoes one, as Edit › Undo
+    /// and Edit › Redo do.
+    #[test]
+    fn the_panel_menu_steps_backward_and_forward() {
+        let mut app = app_with_two_rectangles();
+        let objects = |app: &VectorcraftApp| app.session.active().unwrap().doc.layers[0].children().unwrap().len();
+        assert_eq!((depth(&app), objects(&app)), ((2, 0), 2));
+        click(&mut app, "Step Backward");
+        assert_eq!((depth(&app), objects(&app)), ((1, 1), 1));
+        click(&mut app, "Step Backward");
+        assert_eq!((depth(&app), objects(&app)), ((0, 2), 0));
+        click(&mut app, "Step Forward");
+        assert_eq!((depth(&app), objects(&app)), ((1, 1), 1));
+    }
+
+    /// Step Backward is disabled when there is nothing to undo, and Step Forward is disabled when
+    /// there is nothing to redo. A click on a disabled item changes nothing.
+    #[test]
+    fn the_step_items_are_disabled_with_nothing_to_undo_or_redo() {
+        use crate::widgets::accessibility_tests::tree;
+        let disabled = |app: &mut VectorcraftApp| {
+            let tree = tree(|ui| menu(app, ui));
+            let off =
+                |label: &str| tree.iter().find(|n| n.label().map(str::trim) == Some(label)).unwrap_or_else(|| panic!("no `{label}`")).is_disabled();
+            (off("Step Backward"), off("Step Forward"))
+        };
+        let mut app = VectorcraftApp::new(vectorcraft_engine::Session::new(), Default::default());
+        assert_eq!(disabled(&mut app), (true, true), "no document");
+        app.session.execute("file.new", &json!({"width": 200, "height": 150})).unwrap();
+        assert_eq!(disabled(&mut app), (true, true), "a new document");
+        app.session.execute("shape.rectangle", &json!({"x": 10, "y": 10, "width": 20, "height": 20})).unwrap();
+        assert_eq!(disabled(&mut app), (false, true), "one step to undo");
+        click(&mut app, "Step Forward");
+        assert_eq!(depth(&app), (1, 0));
+        click(&mut app, "Step Backward");
+        assert_eq!(disabled(&mut app), (true, false), "one step to redo");
+        click(&mut app, "Step Backward");
+        assert_eq!(depth(&app), (0, 1));
+    }
+
+    /// Set History Limit… opens Preferences at Performance, the page with History States.
+    #[test]
+    fn set_history_limit_opens_the_history_states_preference() {
+        let mut app = app_with_two_rectangles();
+        click(&mut app, "Set History Limit…");
+        let d = app.ui.dialog.take().expect("a dialog");
+        assert_eq!((d.kind.as_str(), d.str("__category")), ("preferences", "Performance".to_string()));
+        assert!(d.fields.contains_key("historyStates"), "{:?}", d.fields.keys());
+    }
 }

docs/target-app-parity.md

@@ -457,6 +457,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   - Czech render-site labels: desktop/web file filters, diagnostics, suggested preset names and contributor tooltips/plurals now use catalog lookups; gradients have Czech adjective agreement and printer marks have a separate context (PDF/Print and Summary). Search, Home, toolbar/panel tooltips and Preferences already look up their labels. Every complete catalog has rows for these labels and for the Roman and Japanese printer mark styles. Evidence: `i18n::tests::czech_render_site_follow_up`, `i18n::tests::complete_catalogs_translate_render_site_labels`, `dialogs::tests_modal::printer_mark_labels_are_distinct_from_language_names`; see [localization-parity.md](localization-parity.md).
   - Localised UI: menus (in-window and native), panels, dialogs, toolbar and Preferences read from per-language catalogs (`crates/ui-egui/src/i18n`, see `docs/development.md`); Traditional Chinese (Taiwan), Simplified Chinese (mainland), Japanese, Korean, Vietnamese, German, Spanish, French, Italian, Polish, Brazilian Portuguese, Russian and Ukrainian ship complete, and Czech covers every menu label (and more), with system-locale detection on macOS, Windows, Linux and the web (the browser's languages, or `?lang=`), a Language preference and, on macOS, a VectorCraft ▸ Language menu. Names are never translated (fonts and their styles, layers, artboards, saved presets, user libraries, custom workspaces, recent files, plug-ins).
   - The History panel translates the undo step names the engine, the tools and the shell write as literals: each has a row in every complete catalog (`every_undo_label_is_translated`), and a step whose catalog row exists only with an ellipsis (such as an effect's menu name) shows that row without the ellipsis.
+  - The History panel menu has Step Backward and Step Forward, which run Edit › Undo and Edit › Redo and are disabled when there is no step to undo or redo, and Set History Limit…, which opens Preferences at Performance, where History States is set. Not done: Clear History and a new document from the selected state.
   - Native macOS menu bar, vector tool cursors, a ⌘K command palette, middle-button panning with any tool. Native menus explicitly end tracking on command selection, outside window presses and Escape; menu updates wait until tracking ends, and a dismissing press never starts a canvas gesture (M14.8).
   - The errors of the blend spine commands (Move Spine Point, Reshape Spine Segment, Add Spine Point and Delete Spine Point) show in the status bar in the interface language: each has a row in every catalog that translates all status and error messages and in Bulgarian (`blend_spine_param_errors_are_translated`).
   - The macOS menu bar is built from the in-window menus (one model, `native_menu`) and laid out as a Mac app's: the VectorCraft menu holds About, Settings ▸ (each Preferences page, General… ⌘K), Language ▸, Appearance ▸ (UI brightness), Services, Hide VectorCraft ⌃⌘H (⌘H stays Hide Edges), Hide Others, Show All and Quit; Window gains Minimize ⌃⌘M, Zoom and Bring All to Front, and Help the system's search field. Its key equivalents go back to egui as key presses, so user shortcuts, focused text fields and the Type tool's input method behave as in the window, and nothing fires twice; enabled, check marks and labels update in place. `--in-window-menus` or `VECTORCRAFT_IN_WINDOW_MENUS=1` keeps the menus in the window; `ui.inspect` reports `nativeMenuBar`.