diff --git a/apps/vectorcraft/src/main.rs b/apps/vectorcraft/src/main.rs
index 112c71370..e75452125 100644
--- a/apps/vectorcraft/src/main.rs
+++ b/apps/vectorcraft/src/main.rs
@@ -92,7 +92,9 @@ use titlebar::custom_titlebar_from;
 use titlebar::opted_into_system_title_bar;
 #[cfg(windows)]
 use titlebar::set_taskbar_icon;
-use titlebar::{custom_titlebar, native_options};
+#[cfg(all(test, feature = "wgpu"))]
+use titlebar::{app_draws_frame, opted_into_app_title_bar, start_frame};
+use titlebar::{custom_titlebar, native_options, titlebar_from_env};
 
 struct App {
     app: VectorcraftApp,
@@ -466,6 +468,7 @@ fn main() -> std::process::ExitCode {
                     let (loss, ctx) = (graphics_loss.clone(), cc.egui_ctx.clone());
                     rs.device.set_device_lost_callback(move |reason, msg| loss.report(&ctx, format!("{reason:?}: {msg}")));
                 }
+                app.titlebar_from_env = titlebar_from_env();
                 app.custom_titlebar = custom_titlebar;
                 app.desktop_frame = !custom_titlebar;
                 if let Some(port) = control_port {
diff --git a/apps/vectorcraft/src/tests.rs b/apps/vectorcraft/src/tests.rs
index 116651fc8..5f43124e7 100644
--- a/apps/vectorcraft/src/tests.rs
+++ b/apps/vectorcraft/src/tests.rs
@@ -164,6 +164,60 @@ fn the_system_title_bar_preference_keeps_the_window_decorations() {
     assert_eq!(super::native_options(true).viewport.decorations, Some(false));
 }
 
+/// Preferences › User Interface › VectorCraft Title Bar on Every Desktop gives the app frame where
+/// the probe chose the desktop's (KDE, X11, a window opened through XWayland); without it the probe
+/// decides, and `VECTORCRAFT_TITLEBAR` takes precedence over both.
+#[test]
+fn the_app_title_bar_preference_gives_the_app_frame_on_desktop_frames() {
+    assert!(!super::opted_into_app_title_bar(None), "no preferences: the default");
+    let off = ui_state_with_prefs(serde_json::json!({"appTitleBar": false}));
+    assert!(!super::opted_into_app_title_bar(Some(&off)));
+    let on = ui_state_with_prefs(serde_json::json!({"appTitleBar": true}));
+    assert!(super::opted_into_app_title_bar(Some(&on)));
+
+    // (probed_app, overridden, forced_to_x11): without the preference, then with it.
+    let cases = [
+        ((false, None, false), false, true),        // KDE, Sway, X11: the desktop frame
+        ((true, None, false), true, true),          // GNOME on Wayland: the app frame either way
+        ((true, None, true), false, true),          // GNOME, the window opened through XWayland
+        ((false, Some(true), false), true, true),   // VECTORCRAFT_TITLEBAR=app
+        ((false, Some(true), true), true, true),    // VECTORCRAFT_TITLEBAR=app, the window opened through XWayland
+        ((true, Some(false), false), false, false), // VECTORCRAFT_TITLEBAR=desktop takes precedence over the preference
+        ((false, Some(false), true), false, false),
+    ];
+    for ((probed_app, overridden, forced_to_x11), without, with) in cases {
+        assert_eq!(super::app_draws_frame(probed_app, overridden, forced_to_x11, false), without, "{probed_app} {overridden:?} {forced_to_x11}");
+        assert_eq!(super::app_draws_frame(probed_app, overridden, forced_to_x11, true), with, "{probed_app} {overridden:?} {forced_to_x11}");
+    }
+}
+
+/// The frame a start uses: the preference turns the desktop frame the probe chose into the app frame
+/// with the default window buttons, a probed app frame keeps its own buttons, and the desktop frame
+/// stays where the app frame is not drawn. System Title Bar takes precedence over the preference.
+#[test]
+fn the_start_frame_applies_the_app_title_bar_preference() {
+    use craft_window::{Button, Frame, Layout};
+    let gnome = Layout { left: vec![Button::Close], right: vec![] };
+    let cases = [
+        // (probed, overridden, forced_to_x11, opted_into_app), expected
+        ((Frame::Desktop, None, false, false), Frame::Desktop),
+        ((Frame::Desktop, None, false, true), Frame::App(Layout::default())),
+        ((Frame::Desktop, None, true, true), Frame::App(Layout::default())),
+        ((Frame::App(gnome.clone()), None, false, false), Frame::App(gnome.clone())),
+        ((Frame::App(gnome.clone()), None, true, false), Frame::Desktop),
+        ((Frame::App(gnome.clone()), None, true, true), Frame::App(gnome.clone())),
+        ((Frame::Desktop, Some(false), false, true), Frame::Desktop),
+        ((Frame::App(gnome.clone()), Some(true), true, false), Frame::App(gnome.clone())),
+    ];
+    for ((probed, overridden, forced_to_x11, opted_into_app), expected) in cases {
+        let label = format!("{probed:?} {overridden:?} {forced_to_x11} {opted_into_app}");
+        assert_eq!(super::start_frame(probed, overridden, forced_to_x11, opted_into_app), expected, "{label}");
+    }
+    // With both preferences on, System Title Bar takes precedence: the desktop draws the frame.
+    let both = super::start_frame(Frame::Desktop, None, false, true);
+    assert!(!super::custom_titlebar_from(&both, true), "System Title Bar takes precedence over the app title bar preference");
+}
+
 /// The file extensions the macOS bundle declares: its document types and its own exported type.
 fn plist_extensions(plist: &str) -> Vec<&str> {
     ["<key>CFBundleTypeExtensions</key>", "<key>public.filename-extension</key>"]
diff --git a/apps/vectorcraft/src/titlebar.rs b/apps/vectorcraft/src/titlebar.rs
index 63c9f7c13..6e7451ed9 100644
--- a/apps/vectorcraft/src/titlebar.rs
+++ b/apps/vectorcraft/src/titlebar.rs
@@ -46,6 +46,53 @@ pub(crate) fn opted_into_system_title_bar(saved: Option<&vectorcraft_ui_egui::Ui
     saved.map(|ui| ui.engine_prefs.get("systemTitleBar").and_then(serde_json::Value::as_bool).unwrap_or(false)).unwrap_or(false)
 }
 
+/// Whether the user asked for VectorCraft's own title bar in Preferences › User Interface ›
+/// VectorCraft Title Bar on Every Desktop (Linux and the BSDs). Read like
+/// [`opted_into_system_title_bar`]; a missing or unreadable value is `false` (the default).
+pub(crate) fn opted_into_app_title_bar(saved: Option<&vectorcraft_ui_egui::UiState>) -> bool {
+    saved.map(|ui| ui.engine_prefs.get("appTitleBar").and_then(serde_json::Value::as_bool).unwrap_or(false)).unwrap_or(false)
+}
+
+/// Whether the app draws the frame on this start, before the System Title Bar preference is
+/// applied ([`custom_titlebar_from`]). `probed_app` is the `craft-window` probe's answer and
+/// `overridden` its `VECTORCRAFT_TITLEBAR` override. In order: the override decides when it is
+/// set; VectorCraft Title Bar on Every Desktop (`opted_into_app`) gives the app frame; a window
+/// that opens through XWayland (`forced_to_x11`) gets the desktop frame; otherwise the probe
+/// decides.
+pub(crate) fn app_draws_frame(probed_app: bool, overridden: Option<bool>, forced_to_x11: bool, opted_into_app: bool) -> bool {
+    match overridden {
+        Some(app) => app,
+        None => opted_into_app || (probed_app && !forced_to_x11),
+    }
+}
+
+/// The frame this start uses, before the System Title Bar preference is applied
+/// ([`custom_titlebar_from`]): [`app_draws_frame`] applied to the frame the probe chose. A probed
+/// app frame keeps its window-button layout; an app frame the probe did not choose gets the default
+/// layout, since `custom_titlebar_from` reads only which frame it is.
+pub(crate) fn start_frame(probed: craft_window::Frame, overridden: Option<bool>, forced_to_x11: bool, opted_into_app: bool) -> craft_window::Frame {
+    let probed_app = matches!(probed, craft_window::Frame::App(_));
+    match (app_draws_frame(probed_app, overridden, forced_to_x11, opted_into_app), probed) {
+        (true, frame @ craft_window::Frame::App(_)) => frame,
+        (true, craft_window::Frame::Desktop) => craft_window::Frame::App(craft_window::Layout::default()),
+        (false, _) => craft_window::Frame::Desktop,
+    }
+}
+
+/// The `craft-window` probe's answer for this process (its override variable is
+/// `VECTORCRAFT_TITLEBAR`). The probe runs once; on a Wayland session it opens a connection.
+fn probed_choice() -> &'static craft_window::Choice {
+    static CHOICE: std::sync::OnceLock<craft_window::Choice> = std::sync::OnceLock::new();
+    CHOICE.get_or_init(|| craft_window::Choice::probe(craft_window::Prefix::new("VECTORCRAFT")))
+}
+
+/// Whether `VECTORCRAFT_TITLEBAR` chose this window's frame (Linux and the BSDs), so Preferences ›
+/// User Interface › VectorCraft Title Bar on Every Desktop does not apply while it is set. Always
+/// `false` on macOS and Windows.
+pub(crate) fn titlebar_from_env() -> bool {
+    cfg!(not(any(target_os = "macos", target_os = "windows"))) && probed_choice().overridden().is_some()
+}
+
 /// Whether this start draws its own title bar, given the frame the shared `craft-window` crate
 /// decided and the user's System Title Bar preference.
 ///
@@ -82,24 +129,27 @@ pub(crate) fn custom_titlebar_from(_frame: &craft_window::Frame, opted_into_syst
 /// On Linux, Preferences › Performance › Linux Display Server › X11 opens the window through
 /// XWayland (below). A GNOME/Wayland probe would say `Frame::App` there, but the window really runs
 /// on X11, whose window manager draws the frame — so when XWayland is being forced, keep the native
-/// frame, the same as a real X11 session. An explicit `VECTORCRAFT_TITLEBAR` override still wins.
+/// frame, the same as a real X11 session. An explicit `VECTORCRAFT_TITLEBAR` override still wins,
+/// and so does VectorCraft Title Bar on Every Desktop ([`app_draws_frame`]).
 pub(crate) fn custom_titlebar(saved: Option<&vectorcraft_ui_egui::UiState>) -> bool {
-    let choice = craft_window::Choice::probe(craft_window::Prefix::new("VECTORCRAFT"));
+    let choice = probed_choice();
     let opted_into_system = opted_into_system_title_bar(saved);
+    // macOS and Windows never read VectorCraft Title Bar on Every Desktop (`custom_titlebar_from`
+    // ignores the frame there).
+    let opted_into_app = cfg!(not(any(target_os = "macos", target_os = "windows"))) && opted_into_app_title_bar(saved);
     #[cfg(target_os = "linux")]
-    {
+    // When the window will actually open on X11 (XWayland) — the user asked for it *and* the X11
+    // libraries are present, the same two conditions the launch path checks below — that run is
+    // effectively X11, so keep the native frame. If the libraries are missing, startup stays on
+    // Wayland, so the probe's own decision (app-drawn on GNOME) must stand.
+    let forced_to_x11 = {
         let pref = saved.and_then(|ui| ui.engine_prefs.get("linuxDisplayServer")).and_then(serde_json::Value::as_str);
-        // `overridden() == None` means the probe decided (no VECTORCRAFT_TITLEBAR). When the window
-        // will actually open on X11 (XWayland) — the user asked for it *and* the X11 libraries are
-        // present, the same two conditions the launch path checks below — that run is effectively
-        // X11, so keep the native frame. If the libraries are missing, startup stays on Wayland, so
-        // the probe's own decision (app-drawn on GNOME) must stand.
-        let forced_to_x11 = xwayland::wanted(pref, |name| std::env::var_os(name), xwayland::pen_attached) && xwayland::x11_libraries_found();
-        if choice.overridden().is_none() && forced_to_x11 {
-            return custom_titlebar_from(&craft_window::Frame::Desktop, opted_into_system);
-        }
-    }
-    custom_titlebar_from(choice.frame(), opted_into_system)
+        xwayland::wanted(pref, |name| std::env::var_os(name), xwayland::pen_attached) && xwayland::x11_libraries_found()
+    };
+    #[cfg(not(target_os = "linux"))]
+    let forced_to_x11 = false;
+    let frame = start_frame(choice.frame().clone(), choice.overridden(), forced_to_x11, opted_into_app);
+    custom_titlebar_from(&frame, opted_into_system)
 }
 
 pub(crate) fn native_options(custom_titlebar: bool) -> eframe::NativeOptions {
diff --git a/crates/engine/src/cmd/prefscmds.rs b/crates/engine/src/cmd/prefscmds.rs
index 0267725ef..60f0f4565 100644
--- a/crates/engine/src/cmd/prefscmds.rs
+++ b/crates/engine/src/cmd/prefscmds.rs
@@ -349,6 +349,7 @@ pub const PREF_SPECS: &[PrefSpec] = &[
     p!("openDocumentsAsTabs", "User Interface", "", "Open Documents As Tabs", bool),
     p!("largeTabs", "User Interface", "", "Large Tabs", bool),
     p!("systemTitleBar", "User Interface", "", "System Title Bar", bool),
+    p!("appTitleBar", "User Interface", "", "VectorCraft Title Bar on Every Desktop", bool),
     p!("uiScaling", "User Interface", "UI Scaling", "Scale", num(0.75, 2.0, "×")),
     p!("scaleCursorWithUi", "User Interface", "UI Scaling", "Scale Cursor Proportional to UI", bool),
     // `auto` or a language code the shell registers (`zh-hant`); the shell shows it as a dropdown.
diff --git a/crates/engine/src/prefs.rs b/crates/engine/src/prefs.rs
index fc2530c03..e1346b457 100644
--- a/crates/engine/src/prefs.rs
+++ b/crates/engine/src/prefs.rs
@@ -174,6 +174,10 @@ pub struct Prefs {
     /// acting as the title bar (tiling window managers, desktops that draw their own decorations).
     /// Read when the app starts. macOS always uses the system's.
     pub system_title_bar: bool,
+    /// Linux and the BSDs: draw the app bar as the title bar in sessions where the desktop draws
+    /// the frame (X11, Wayland compositors with server-side decorations, XWayland), as on GNOME.
+    /// Read when the app starts; System Title Bar and `VECTORCRAFT_TITLEBAR` take precedence over it.
+    pub app_title_bar: bool,
     // Performance
     pub gpu_performance: bool,
     pub animated_zoom: bool,
@@ -457,6 +461,7 @@ impl Default for Prefs {
             scale_cursor_with_ui: false,
             interface_language: s("auto"),
             system_title_bar: false,
+            app_title_bar: false,
             gpu_performance: true,
             animated_zoom: true,
             gpu_preference: s("automatic"),
diff --git a/crates/ui-egui/src/app.rs b/crates/ui-egui/src/app.rs
index 5b53073a3..33b2ae06f 100644
--- a/crates/ui-egui/src/app.rs
+++ b/crates/ui-egui/src/app.rs
@@ -122,6 +122,7 @@ impl VectorcraftApp {
             frame_rate: Default::default(),
             canvas_rect: None,
             hover_doc: None,
+            titlebar_from_env: false,
             custom_titlebar: false,
             desktop_frame: false,
             last_window_title: String::new(),
diff --git a/crates/ui-egui/src/i18n/bg.tsv b/crates/ui-egui/src/i18n/bg.tsv
index c83f7f43f..2f6f4b4a2 100644
--- a/crates/ui-egui/src/i18n/bg.tsv
+++ b/crates/ui-egui/src/i18n/bg.tsv
@@ -4727,6 +4727,9 @@ axis	Both	И двете
 effect	Soft	Меко
 	Edge	Роб
 	System Title Bar	Заглавна лента на системата
+	VectorCraft Title Bar on Every Desktop	Заглавна лента на VectorCraft на всеки работен плот
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Докато е зададена, променливата на средата VECTORCRAFT_TITLEBAR избира заглавната лента.
+	System Title Bar takes precedence over this option while it is on.	Докато е включена, „Заглавна лента на системата“ има предимство пред тази опция.
 	Value Axis	Ос на стойностите
 	On Left Side	От лявата страна
 	On Right Side	От дясната страна
diff --git a/crates/ui-egui/src/i18n/bs.tsv b/crates/ui-egui/src/i18n/bs.tsv
index 8f7649026..27bbcadd1 100644
--- a/crates/ui-egui/src/i18n/bs.tsv
+++ b/crates/ui-egui/src/i18n/bs.tsv
@@ -880,6 +880,9 @@
 	Stained Glass…	Vitraž…
 	Texturizer…	Teksturizator…
 	System Title Bar	Sistemska naslovna traka
+	VectorCraft Title Bar on Every Desktop	Naslovna traka VectorCrafta na svakoj radnoj površini
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Dok je varijabla okruženja VECTORCRAFT_TITLEBAR postavljena, ona bira naslovnu traku.
+	System Title Bar takes precedence over this option while it is on.	Dok je uključena, Sistemska naslovna traka ima prednost pred ovom opcijom.
 	Exit	Izlaz
 	Distort	Izobliči
 	Diffuse Glow…	Difuzni sjaj…
diff --git a/crates/ui-egui/src/i18n/ca.tsv b/crates/ui-egui/src/i18n/ca.tsv
index a89022bf9..060c96e63 100644
--- a/crates/ui-egui/src/i18n/ca.tsv
+++ b/crates/ui-egui/src/i18n/ca.tsv
@@ -4282,6 +4282,9 @@ digits	Malayalam	Malaiàlam
 	Syntax newer than ES3	Sintaxi més nova que ES3
 	System Layout	Disposició del sistema
 	System Title Bar	Barra de títol del sistema
+	VectorCraft Title Bar on Every Desktop	Barra de títol de VectorCraft a tots els escriptoris
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Mentre està definida, la variable d’entorn VECTORCRAFT_TITLEBAR determina la barra de títol.
+	System Title Bar takes precedence over this option while it is on.	Mentre està activada, Barra de títol del sistema té prioritat sobre aquesta opció.
 	Tab	Tabulació
 	Tab Stops	Aturades de tabulació
 	Table	Taula
diff --git a/crates/ui-egui/src/i18n/cs.tsv b/crates/ui-egui/src/i18n/cs.tsv
index 1fa584fd0..469d64acf 100644
--- a/crates/ui-egui/src/i18n/cs.tsv
+++ b/crates/ui-egui/src/i18n/cs.tsv
@@ -894,6 +894,9 @@
 	Stained Glass…	Vitráž…
 	Texturizer…	Texturovač…
 	System Title Bar	Systémové záhlaví okna
+	VectorCraft Title Bar on Every Desktop	Záhlaví okna VectorCraftu v každém desktopovém prostředí
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Dokud je proměnná prostředí VECTORCRAFT_TITLEBAR nastavena, záhlaví okna volí ona.
+	System Title Bar takes precedence over this option while it is on.	Dokud je Systémové záhlaví okna zapnuté, má přednost před touto volbou.
 	Exit	Ukončit
 	Distort	Zkreslení
 	Diffuse Glow…	Rozptýlená záře…
diff --git a/crates/ui-egui/src/i18n/da.tsv b/crates/ui-egui/src/i18n/da.tsv
index 3c68b09fe..f89ebed0a 100644
--- a/crates/ui-egui/src/i18n/da.tsv
+++ b/crates/ui-egui/src/i18n/da.tsv
@@ -821,6 +821,9 @@
 	Stained Glass…	Blyindfattede ruder…
 	Texturizer…	Teksturér…
 	System Title Bar	Systemtitellinje
+	VectorCraft Title Bar on Every Desktop	VectorCrafts titellinje på alle skriveborde
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Miljøvariablen VECTORCRAFT_TITLEBAR vælger titellinjen, så længe den er angivet.
+	System Title Bar takes precedence over this option while it is on.	Systemtitellinje har forrang for denne indstilling, så længe den er slået til.
 	Exit	Afslut
 	Distort	Forvræng
 	Diffuse Glow…	Diffus glød…
diff --git a/crates/ui-egui/src/i18n/de.tsv b/crates/ui-egui/src/i18n/de.tsv
index 5061ce431..6cb87a87b 100644
--- a/crates/ui-egui/src/i18n/de.tsv
+++ b/crates/ui-egui/src/i18n/de.tsv
@@ -4771,6 +4771,9 @@ theme	Appearance	Erscheinungsbild
 @plural	{n} linked image changed on disk. Show the new version?|{n} linked images changed on disk. Show the new versions?	{n} verknüpftes Bild wurde auf dem Datenträger geändert. Neue Version anzeigen?|{n} verknüpfte Bilder wurden auf dem Datenträger geändert. Neue Versionen anzeigen?
 # Window: the system's title bar (Windows, Linux).
 	System Title Bar	Systemtitelleiste
+	VectorCraft Title Bar on Every Desktop	VectorCraft-Titelleiste auf jedem Desktop
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Solange die Umgebungsvariable VECTORCRAFT_TITLEBAR gesetzt ist, bestimmt sie die Titelleiste.
+	System Title Bar takes precedence over this option while it is on.	Solange Systemtitelleiste eingeschaltet ist, hat sie Vorrang vor dieser Option.
 # Brush Options: Scatter, Art and Pattern brushes.
 	Scatter Brush Options	Optionen für Spezialpinsel
 	Art Brush Options	Optionen für Bildpinsel
diff --git a/crates/ui-egui/src/i18n/el.tsv b/crates/ui-egui/src/i18n/el.tsv
index 25dac9e83..25b0422e5 100644
--- a/crates/ui-egui/src/i18n/el.tsv
+++ b/crates/ui-egui/src/i18n/el.tsv
@@ -4786,6 +4786,9 @@ digits	Malayalam	Μαλαγιάλαμ
 	RGB:	RGB:
 	CMYK:	CMYK:
 	System Title Bar	Γραμμή τίτλου συστήματος
+	VectorCraft Title Bar on Every Desktop	Γραμμή τίτλου του VectorCraft σε κάθε επιφάνεια εργασίας
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Όσο είναι ορισμένη, η μεταβλητή περιβάλλοντος VECTORCRAFT_TITLEBAR επιλέγει τη γραμμή τίτλου.
+	System Title Bar takes precedence over this option while it is on.	Όσο είναι ενεργή, η Γραμμή τίτλου συστήματος υπερισχύει αυτής της επιλογής.
 	Value Axis	Άξονας τιμών
 	On Left Side	Στην αριστερή πλευρά
 	On Right Side	Στη δεξιά πλευρά
diff --git a/crates/ui-egui/src/i18n/es.tsv b/crates/ui-egui/src/i18n/es.tsv
index 60897a54d..dafa078ed 100644
--- a/crates/ui-egui/src/i18n/es.tsv
+++ b/crates/ui-egui/src/i18n/es.tsv
@@ -4875,6 +4875,9 @@ axis	Both	Ambos
 	Bottom Right	Abajo a la derecha
 	Edge	Borde
 	System Title Bar	Barra de título del sistema
+	VectorCraft Title Bar on Every Desktop	Barra de título de VectorCraft en todos los escritorios
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Mientras está definida, la variable de entorno VECTORCRAFT_TITLEBAR elige la barra de título.
+	System Title Bar takes precedence over this option while it is on.	Mientras está activada, Barra de título del sistema tiene prioridad sobre esta opción.
 	Value Axis	Eje de valores
 	On Left Side	En el lado izquierdo
 	On Right Side	En el lado derecho
diff --git a/crates/ui-egui/src/i18n/fi.tsv b/crates/ui-egui/src/i18n/fi.tsv
index 8bb2da5c7..ea04404d5 100644
--- a/crates/ui-egui/src/i18n/fi.tsv
+++ b/crates/ui-egui/src/i18n/fi.tsv
@@ -878,6 +878,9 @@
 	Stained Glass…	Lasimaalaus…
 	Texturizer…	Teksturoija…
 	System Title Bar	Järjestelmän otsikkorivi
+	VectorCraft Title Bar on Every Desktop	VectorCraftin otsikkorivi kaikissa työpöytäympäristöissä
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Ympäristömuuttuja VECTORCRAFT_TITLEBAR valitsee otsikkorivin niin kauan kuin se on asetettu.
+	System Title Bar takes precedence over this option while it is on.	Järjestelmän otsikkorivi ohittaa tämän asetuksen niin kauan kuin se on käytössä.
 	Exit	Lopeta
 	Distort	Vääristä
 	Diffuse Glow…	Hajautettu hehku…
diff --git a/crates/ui-egui/src/i18n/fr.tsv b/crates/ui-egui/src/i18n/fr.tsv
index 824d6b2af..2168c4bde 100644
--- a/crates/ui-egui/src/i18n/fr.tsv
+++ b/crates/ui-egui/src/i18n/fr.tsv
@@ -4884,6 +4884,9 @@ axis	Both	Les deux
 effect	Soft	Doux
 	Edge	Bord
 	System Title Bar	Barre de titre du système
+	VectorCraft Title Bar on Every Desktop	Barre de titre de VectorCraft sur tous les bureaux
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Tant qu’elle est définie, la variable d’environnement VECTORCRAFT_TITLEBAR choisit la barre de titre.
+	System Title Bar takes precedence over this option while it is on.	Tant qu’elle est activée, Barre de titre du système a priorité sur cette option.
 	Value Axis	Axe des valeurs
 	On Left Side	À gauche
 	On Right Side	À droite
diff --git a/crates/ui-egui/src/i18n/hi.tsv b/crates/ui-egui/src/i18n/hi.tsv
index 9416bfd5b..94e3ce3e4 100644
--- a/crates/ui-egui/src/i18n/hi.tsv
+++ b/crates/ui-egui/src/i18n/hi.tsv
@@ -4658,6 +4658,9 @@
 	System	सिस्टम
 	System Layout	सिस्टम लेआउट
 	System Title Bar	सिस्टम टाइटल बार
+	VectorCraft Title Bar on Every Desktop	हर डेस्कटॉप पर VectorCraft टाइटल बार
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	जब तक एनवायरनमेंट वेरिएबल VECTORCRAFT_TITLEBAR सेट है, टाइटल बार वही चुनता है।
+	System Title Bar takes precedence over this option while it is on.	जब तक सिस्टम टाइटल बार चालू है, उसे इस विकल्प पर प्राथमिकता मिलती है।
 	Tab	Tab
 	Tab Stops	टैब स्टॉप्स
 	Table	तालिका
diff --git a/crates/ui-egui/src/i18n/hu.tsv b/crates/ui-egui/src/i18n/hu.tsv
index db219a38b..f60dd9f86 100644
--- a/crates/ui-egui/src/i18n/hu.tsv
+++ b/crates/ui-egui/src/i18n/hu.tsv
@@ -4081,6 +4081,9 @@ mark-style	Japanese	Japán
 	Symbols	Szimbólumok
 	System Layout	Rendszerszintű elrendezés
 	System Title Bar	Rendszer címsora
+	VectorCraft Title Bar on Every Desktop	A VectorCraft címsora minden asztali környezetben
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Amíg a VECTORCRAFT_TITLEBAR környezeti változó be van állítva, az választja ki a címsort.
+	System Title Bar takes precedence over this option while it is on.	Amíg a Rendszer címsora be van kapcsolva, elsőbbséget élvez ezzel a beállítással szemben.
 	Tab	Tabulátor
 	Tab Stops	Tabulátorpontok
 	Table	Táblázat
diff --git a/crates/ui-egui/src/i18n/id.tsv b/crates/ui-egui/src/i18n/id.tsv
index 3ac90fabf..8d84f8200 100644
--- a/crates/ui-egui/src/i18n/id.tsv
+++ b/crates/ui-egui/src/i18n/id.tsv
@@ -821,6 +821,9 @@
 	Stained Glass…	Kaca patri…
 	Texturizer…	Texturizer…
 	System Title Bar	Bilah judul sistem
+	VectorCraft Title Bar on Every Desktop	Bilah judul VectorCraft di setiap desktop
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Selama ditetapkan, variabel lingkungan VECTORCRAFT_TITLEBAR memilih bilah judul.
+	System Title Bar takes precedence over this option while it is on.	Selama aktif, Bilah judul sistem lebih diutamakan daripada opsi ini.
 	Exit	Keluar
 	Distort	Distorsi
 	Diffuse Glow…	Pendar difusi…
diff --git a/crates/ui-egui/src/i18n/it.tsv b/crates/ui-egui/src/i18n/it.tsv
index 0d54ffe59..57e135ad2 100644
--- a/crates/ui-egui/src/i18n/it.tsv
+++ b/crates/ui-egui/src/i18n/it.tsv
@@ -4919,6 +4919,9 @@ effect	Soft	Morbido
 effect	Regular	Normale
 	Edge	Bordo
 	System Title Bar	Barra del titolo di sistema
+	VectorCraft Title Bar on Every Desktop	Barra del titolo di VectorCraft su ogni desktop
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Finché è impostata, la variabile d'ambiente VECTORCRAFT_TITLEBAR sceglie la barra del titolo.
+	System Title Bar takes precedence over this option while it is on.	Finché è attiva, Barra del titolo di sistema ha la precedenza su questa opzione.
 	Value Axis	Asse dei valori
 	On Left Side	Sul lato sinistro
 	On Right Side	Sul lato destro
diff --git a/crates/ui-egui/src/i18n/ja.tsv b/crates/ui-egui/src/i18n/ja.tsv
index 284f8cffb..451b1a5f7 100644
--- a/crates/ui-egui/src/i18n/ja.tsv
+++ b/crates/ui-egui/src/i18n/ja.tsv
@@ -4961,6 +4961,9 @@ effect	Horizontal	水平
 effect	Vertical	垂直
 	Edge	エッジ
 	System Title Bar	システムのタイトルバー
+	VectorCraft Title Bar on Every Desktop	すべてのデスクトップで VectorCraft のタイトルバー
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	環境変数 VECTORCRAFT_TITLEBAR が設定されている間は、この変数でタイトルバーが決まります。
+	System Title Bar takes precedence over this option while it is on.	システムのタイトルバーがオンの間は、そちらがこのオプションより優先されます。
 	Value Axis	数値軸
 	On Left Side	左側
 	On Right Side	右側
diff --git a/crates/ui-egui/src/i18n/ka.tsv b/crates/ui-egui/src/i18n/ka.tsv
index cf9abe5bb..48b81a301 100644
--- a/crates/ui-egui/src/i18n/ka.tsv
+++ b/crates/ui-egui/src/i18n/ka.tsv
@@ -774,6 +774,9 @@
 	Stained Glass…	ვიტრაჟი…
 	Texturizer…	ტექსტურირება…
 	System Title Bar	სისტემის სათაურის ზოლი
+	VectorCraft Title Bar on Every Desktop	VectorCraft-ის სათაურის ზოლი ყველა სამუშაო მაგიდაზე
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	სანამ გარემოს ცვლადი VECTORCRAFT_TITLEBAR დაყენებულია, სათაურის ზოლს ის ირჩევს.
+	System Title Bar takes precedence over this option while it is on.	სანამ სისტემის სათაურის ზოლი ჩართულია, მას ამ პარამეტრზე უპირატესობა აქვს.
 	Exit	გასვლა
 	Distort	დეფორმაცია
 	Diffuse Glow…	გაბნეული ნათება…
diff --git a/crates/ui-egui/src/i18n/ko.tsv b/crates/ui-egui/src/i18n/ko.tsv
index f341e1776..b6a60e185 100644
--- a/crates/ui-egui/src/i18n/ko.tsv
+++ b/crates/ui-egui/src/i18n/ko.tsv
@@ -4888,6 +4888,9 @@ effect	Horizontal	가로
 effect	Vertical	세로
 	Edge	가장자리
 	System Title Bar	시스템 제목 표시줄
+	VectorCraft Title Bar on Every Desktop	모든 데스크톱에서 VectorCraft 제목 표시줄
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	환경 변수 VECTORCRAFT_TITLEBAR가 설정되어 있는 동안에는 이 변수가 제목 표시줄을 정합니다.
+	System Title Bar takes precedence over this option while it is on.	시스템 제목 표시줄이 켜져 있는 동안에는 그 설정이 이 옵션보다 우선합니다.
 	Value Axis	값 축
 	On Left Side	왼쪽
 	On Right Side	오른쪽
diff --git a/crates/ui-egui/src/i18n/nl.tsv b/crates/ui-egui/src/i18n/nl.tsv
index 3f0c7365b..f59503b55 100644
--- a/crates/ui-egui/src/i18n/nl.tsv
+++ b/crates/ui-egui/src/i18n/nl.tsv
@@ -835,6 +835,9 @@
 	Stained Glass…	Glas in lood…
 	Texturizer…	Texturizer…
 	System Title Bar	Systeemtitelbalk
+	VectorCraft Title Bar on Every Desktop	VectorCraft-titelbalk op elk bureaublad
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Zolang de omgevingsvariabele VECTORCRAFT_TITLEBAR is ingesteld, kiest die de titelbalk.
+	System Title Bar takes precedence over this option while it is on.	Zolang Systeemtitelbalk is ingeschakeld, heeft die voorrang op deze optie.
 	Exit	Afsluiten
 	Distort	Vervormen
 	Diffuse Glow…	Diffuse gloed…
diff --git a/crates/ui-egui/src/i18n/pl.tsv b/crates/ui-egui/src/i18n/pl.tsv
index a1b2bb462..a36e96485 100644
--- a/crates/ui-egui/src/i18n/pl.tsv
+++ b/crates/ui-egui/src/i18n/pl.tsv
@@ -836,6 +836,9 @@
 	Stained Glass…	Witraż…
 	Texturizer…	Teksturowanie…
 	System Title Bar	Systemowy pasek tytułu
+	VectorCraft Title Bar on Every Desktop	Pasek tytułu VectorCraft na każdym pulpicie
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Dopóki zmienna środowiskowa VECTORCRAFT_TITLEBAR jest ustawiona, to ona wybiera pasek tytułu.
+	System Title Bar takes precedence over this option while it is on.	Dopóki Systemowy pasek tytułu jest włączony, ma pierwszeństwo przed tą opcją.
 	Exit	Zakończ
 	Distort	Zniekształcenie
 	Diffuse Glow…	Rozproszony blask…
diff --git a/crates/ui-egui/src/i18n/pt-br.tsv b/crates/ui-egui/src/i18n/pt-br.tsv
index efd6d8047..777c8ac78 100644
--- a/crates/ui-egui/src/i18n/pt-br.tsv
+++ b/crates/ui-egui/src/i18n/pt-br.tsv
@@ -3272,6 +3272,9 @@ imageTrace	Outline	Contorno
 	Stained Glass…	Vitral…
 	Texturizer…	Texturizador…
 	System Title Bar	Barra de título do sistema
+	VectorCraft Title Bar on Every Desktop	Barra de título do VectorCraft em todas as áreas de trabalho
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Enquanto estiver definida, a variável de ambiente VECTORCRAFT_TITLEBAR escolhe a barra de título.
+	System Title Bar takes precedence over this option while it is on.	Enquanto estiver ativada, Barra de título do sistema tem prioridade sobre esta opção.
 	Exit	Sair
 	Distort	Distorcer
 	Diffuse Glow…	Brilho difuso…
diff --git a/crates/ui-egui/src/i18n/ru.tsv b/crates/ui-egui/src/i18n/ru.tsv
index 18931dce6..d0a28ef56 100644
--- a/crates/ui-egui/src/i18n/ru.tsv
+++ b/crates/ui-egui/src/i18n/ru.tsv
@@ -4914,6 +4914,9 @@ axis	Both	Оба
 	Bottom Right	Снизу справа
 	Edge	Край
 	System Title Bar	Системная строка заголовка
+	VectorCraft Title Bar on Every Desktop	Строка заголовка VectorCraft на любом рабочем столе
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Пока переменная среды VECTORCRAFT_TITLEBAR задана, строку заголовка выбирает она.
+	System Title Bar takes precedence over this option while it is on.	Пока включена «Системная строка заголовка», она имеет приоритет над этим параметром.
 	Value Axis	Ось значений
 	On Left Side	Слева
 	On Right Side	Справа
diff --git a/crates/ui-egui/src/i18n/sv.tsv b/crates/ui-egui/src/i18n/sv.tsv
index 19a6f11c3..59f2be4a3 100644
--- a/crates/ui-egui/src/i18n/sv.tsv
+++ b/crates/ui-egui/src/i18n/sv.tsv
@@ -4793,6 +4793,9 @@ axis	Both	Båda
 effect	Soft	Mjuk
 	Edge	Kant
 	System Title Bar	Systemets namnlist
+	VectorCraft Title Bar on Every Desktop	VectorCrafts namnlist på alla skrivbord
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Miljövariabeln VECTORCRAFT_TITLEBAR väljer namnlisten så länge den är angiven.
+	System Title Bar takes precedence over this option while it is on.	Systemets namnlist har företräde framför det här alternativet så länge den är på.
 	Value Axis	Värdeaxel
 	On Left Side	På vänster sida
 	On Right Side	På höger sida
diff --git a/crates/ui-egui/src/i18n/tr.tsv b/crates/ui-egui/src/i18n/tr.tsv
index 02587229e..2ad972032 100644
--- a/crates/ui-egui/src/i18n/tr.tsv
+++ b/crates/ui-egui/src/i18n/tr.tsv
@@ -4626,6 +4626,9 @@ axis	Both	Her İkisi
 effect	Soft	Yumuşak
 	Edge	Kenar
 	System Title Bar	Sistem Başlık Çubuğu
+	VectorCraft Title Bar on Every Desktop	Her Masaüstünde VectorCraft Başlık Çubuğu
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	VECTORCRAFT_TITLEBAR ortam değişkeni ayarlı olduğu sürece başlık çubuğunu o seçer.
+	System Title Bar takes precedence over this option while it is on.	Sistem Başlık Çubuğu açık olduğu sürece bu seçeneğe göre önceliklidir.
 	Value Axis	Değer Ekseni
 	On Left Side	Sol Tarafta
 	On Right Side	Sağ Tarafta
diff --git a/crates/ui-egui/src/i18n/uk.tsv b/crates/ui-egui/src/i18n/uk.tsv
index e8e7bb937..08c6f9e74 100644
--- a/crates/ui-egui/src/i18n/uk.tsv
+++ b/crates/ui-egui/src/i18n/uk.tsv
@@ -4901,6 +4901,9 @@ axis	Both	Обидві
 	Bottom Right	Знизу праворуч
 	Edge	Край
 	System Title Bar	Системний рядок заголовка
+	VectorCraft Title Bar on Every Desktop	Рядок заголовка VectorCraft на будь-якій стільниці
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Поки змінну середовища VECTORCRAFT_TITLEBAR задано, рядок заголовка вибирає вона.
+	System Title Bar takes precedence over this option while it is on.	Поки ввімкнено «Системний рядок заголовка», він має пріоритет над цим параметром.
 	Value Axis	Вісь значень
 	On Left Side	Ліворуч
 	On Right Side	Праворуч
diff --git a/crates/ui-egui/src/i18n/vi.tsv b/crates/ui-egui/src/i18n/vi.tsv
index 7bd7ad97f..b3c2fdf6f 100644
--- a/crates/ui-egui/src/i18n/vi.tsv
+++ b/crates/ui-egui/src/i18n/vi.tsv
@@ -3799,6 +3799,9 @@ mark-style	Japanese	Kiểu Nhật
 	Symbols	Ký hiệu
 	System Layout	Bố cục hệ thống
 	System Title Bar	Thanh tiêu đề hệ thống
+	VectorCraft Title Bar on Every Desktop	Thanh tiêu đề VectorCraft trên mọi màn hình nền
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	Khi biến môi trường VECTORCRAFT_TITLEBAR được đặt, biến này chọn thanh tiêu đề.
+	System Title Bar takes precedence over this option while it is on.	Khi Thanh tiêu đề hệ thống được bật, tùy chọn đó được ưu tiên hơn tùy chọn này.
 	Tab	Tab
 	Tab Stops	Vị trí tab
 	Table	Bảng
diff --git a/crates/ui-egui/src/i18n/zh-hans.tsv b/crates/ui-egui/src/i18n/zh-hans.tsv
index ed3d1da78..74bed9ef6 100644
--- a/crates/ui-egui/src/i18n/zh-hans.tsv
+++ b/crates/ui-egui/src/i18n/zh-hans.tsv
@@ -5213,6 +5213,9 @@ effect	Horizontal	水平
 effect	Vertical	垂直
 	Edge	边缘
 	System Title Bar	系统标题栏
+	VectorCraft Title Bar on Every Desktop	在所有桌面上使用 VectorCraft 标题栏
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	设置了环境变量 VECTORCRAFT_TITLEBAR 时，由它选择标题栏。
+	System Title Bar takes precedence over this option while it is on.	开启系统标题栏时，它优先于此选项。
 	Value Axis	数值轴
 	On Left Side	左侧
 	On Right Side	右侧
diff --git a/crates/ui-egui/src/i18n/zh-hant.tsv b/crates/ui-egui/src/i18n/zh-hant.tsv
index 30fd19633..771c86f98 100644
--- a/crates/ui-egui/src/i18n/zh-hant.tsv
+++ b/crates/ui-egui/src/i18n/zh-hant.tsv
@@ -5030,6 +5030,9 @@ axis	Both	兩者
 effect	Soft	柔和
 	Edge	邊緣
 	System Title Bar	系統標題列
+	VectorCraft Title Bar on Every Desktop	在所有桌面上使用 VectorCraft 標題列
+	The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.	設定了環境變數 VECTORCRAFT_TITLEBAR 時，由它選擇標題列。
+	System Title Bar takes precedence over this option while it is on.	開啟系統標題列時，它優先於此選項。
 	Value Axis	數值軸
 	On Left Side	左側
 	On Right Side	右側
diff --git a/crates/ui-egui/src/lib.rs b/crates/ui-egui/src/lib.rs
index 9b054a683..4b931aaef 100644
--- a/crates/ui-egui/src/lib.rs
+++ b/crates/ui-egui/src/lib.rs
@@ -195,6 +195,10 @@ pub struct VectorcraftApp {
     clipboard_publishing: sysclip::Publishing,
     /// A URL to open through egui next frame (when the host has no `open_url` service).
     pending_url: Option<String>,
+    /// `VECTORCRAFT_TITLEBAR` chose this window's frame (Linux and the BSDs), so Preferences › User
+    /// Interface › VectorCraft Title Bar on Every Desktop does not apply while it is set. `false`
+    /// unless the host sets it.
+    pub titlebar_from_env: bool,
     /// Windows and Linux: the window has no OS decorations, so the app bar is the title bar (drag,
     /// double-click to maximize, caption buttons) and invisible edge zones resize the window.
     pub custom_titlebar: bool,
diff --git a/crates/ui-egui/src/prefs_dialog.rs b/crates/ui-egui/src/prefs_dialog.rs
index 8c3fa35d6..8822dc69e 100644
--- a/crates/ui-egui/src/prefs_dialog.rs
+++ b/crates/ui-egui/src/prefs_dialog.rs
@@ -19,6 +19,10 @@ pub const UI_FIELDS: &[(&str, &str, &str)] = &[
     ("__taskBar", "General", "Enable Contextual Task Bar"),
 ];
 
+/// Whether User Interface shows VectorCraft Title Bar on Every Desktop (`appTitleBar`): Linux and the
+/// BSDs, where the desktop may draw the window's frame. macOS and Windows never read it.
+const APP_TITLE_BAR_SHOWN: bool = cfg!(not(any(target_arch = "wasm32", target_os = "macos", target_os = "windows")));
+
 pub fn open(app: &mut VectorcraftApp, category: Option<&str>) {
     // One field per preference key or group (the flattener presets have commands of their own).
     let mut fields: Map<String, Value> = app.session.prefs.to_json().as_object().cloned().unwrap_or_default();
@@ -32,6 +36,9 @@ pub fn open(app: &mut VectorcraftApp, category: Option<&str>) {
     fields.insert("__smartGuides".into(), json!(app.ui.view.smart_guides));
     fields.insert("__snapToGrid".into(), json!(app.ui.view.snap_to_grid));
     fields.insert("__taskBar".into(), json!(app.ui.task_bar));
+    // Read-only: whether VECTORCRAFT_TITLEBAR chose this window's frame (VectorCraft Title Bar on
+    // Every Desktop's note).
+    fields.insert("__titlebarFromEnv".into(), json!(app.titlebar_from_env));
     fields.insert("__search".into(), json!(""));
     fields.insert("__focusSearch".into(), json!(true));
     app.ui.dialog = Some(Dialog { kind: "preferences".into(), fields });
@@ -52,6 +59,7 @@ fn settings() -> impl Iterator<Item = Setting> {
     let ui_fields = UI_FIELDS.iter().map(|&(key, category, label)| Setting { key, category, section: "", label });
     let shown = |key: &str| match key {
         "systemTitleBar" => cfg!(all(not(target_arch = "wasm32"), not(target_os = "macos"))),
+        "appTitleBar" => APP_TITLE_BAR_SHOWN,
         "linuxDisplayServer" => cfg!(target_os = "linux"),
         _ => true,
     };
@@ -474,8 +482,31 @@ fn category_fields(ui: &mut egui::Ui, app: &mut VectorcraftApp, d: &mut Dialog,
             PrefKind::Bool if sp.key == "systemTitleBar" => {
                 if cfg!(all(not(target_arch = "wasm32"), not(target_os = "macos"))) {
                     bool_row(ui, d, sp.key, sp.label);
-                    // The window's decorations are chosen once, when the app starts.
-                    ui.label(egui::RichText::new(tl!("Applies the next time VectorCraft starts.")).color(t.text_dim).size(11.0));
+                    // The window's decorations are chosen once, when the app starts. On Linux and the
+                    // BSDs the note goes under the next row, which also applies at the next start.
+                    if !APP_TITLE_BAR_SHOWN {
+                        ui.label(egui::RichText::new(tl!("Applies the next time VectorCraft starts.")).color(t.text_dim).size(11.0));
+                    }
+                }
+            }
+            // Linux and the BSDs only, where the desktop may draw the frame: dimmed while System
+            // Title Bar is on or VECTORCRAFT_TITLEBAR is set, which take precedence over it. A note
+            // names each one that is in effect.
+            PrefKind::Bool if sp.key == "appTitleBar" => {
+                if APP_TITLE_BAR_SHOWN {
+                    let from_env = d.bool("__titlebarFromEnv");
+                    let system = d.bool("systemTitleBar");
+                    ui.add_enabled_ui(!from_env && !system, |ui| bool_row(ui, d, sp.key, sp.label));
+                    if system {
+                        let note = tl!("System Title Bar takes precedence over this option while it is on.");
+                        ui.label(egui::RichText::new(note).color(t.text_dim).size(11.0));
+                    }
+                    let note = if from_env {
+                        tl!("The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.")
+                    } else {
+                        tl!("Applies the next time VectorCraft starts.")
+                    };
+                    ui.label(egui::RichText::new(note).color(t.text_dim).size(11.0));
                 }
             }
             PrefKind::Bool => bool_row(ui, d, sp.key, sp.label),
diff --git a/crates/ui-egui/src/prefs_dialog/tests.rs b/crates/ui-egui/src/prefs_dialog/tests.rs
index 8e0db81d9..99bc68c6b 100644
--- a/crates/ui-egui/src/prefs_dialog/tests.rs
+++ b/crates/ui-egui/src/prefs_dialog/tests.rs
@@ -301,6 +301,97 @@ fn system_title_bar_preference_shows_and_persists() {
     assert_eq!(saved["engine_prefs"]["systemTitleBar"], json!(true));
 }
 
+/// User Interface › VectorCraft Title Bar on Every Desktop: shown on Linux and the BSDs only, under
+/// System Title Bar with the next-launch note once, and saved under the key the desktop app reads
+/// before the window opens.
+#[test]
+fn app_title_bar_preference_shows_and_persists() {
+    fn texts(s: &egui::Shape, out: &mut Vec<String>) {
+        match s {
+            egui::Shape::Text(t) => out.push(t.galley.text().to_string()),
+            egui::Shape::Vec(v) => v.iter().for_each(|s| texts(s, out)),
+            _ => {}
+        }
+    }
+    let mut a = app();
+    open(&mut a, Some("User Interface"));
+    let ctx = egui::Context::default();
+    crate::theme::install_fonts(&ctx);
+    let mut out = ctx.run_ui(egui::RawInput::default(), |ui| show(&mut a, ui.ctx()));
+    out.textures_delta.clear();
+    let mut out = ctx.run_ui(egui::RawInput::default(), |ui| show(&mut a, ui.ctx()));
+    out.textures_delta.clear();
+    let mut shown = vec![];
+    out.shapes.iter().for_each(|c| texts(&c.shape, &mut shown));
+    let supported = cfg!(not(any(target_arch = "wasm32", target_os = "macos", target_os = "windows")));
+    assert_eq!(shown.iter().any(|t| t == "VectorCraft Title Bar on Every Desktop"), supported, "{shown:?}");
+    let notes = shown.iter().filter(|t| *t == "Applies the next time VectorCraft starts.").count();
+    assert_eq!(notes, usize::from(cfg!(all(not(target_arch = "wasm32"), not(target_os = "macos")))), "{shown:?}");
+    a.ui.dialog.as_mut().unwrap().fields.insert("appTitleBar".into(), json!(true));
+    confirm(&mut a).unwrap();
+    assert!(a.session.prefs.app_title_bar);
+    let saved: Value = serde_json::from_slice(&serde_json::to_vec(&a.ui).unwrap()).unwrap();
+    assert_eq!(saved["engine_prefs"]["appTitleBar"], json!(true));
+}
+
+/// VectorCraft Title Bar on Every Desktop does not take clicks while System Title Bar is on or
+/// VECTORCRAFT_TITLEBAR is set. With the variable set its note names the variable in place of the
+/// next-launch note, and with System Title Bar on a note says that System Title Bar takes precedence.
+#[test]
+fn app_title_bar_is_dimmed_while_something_takes_precedence() {
+    fn texts(s: &egui::Shape, out: &mut Vec<String>) {
+        match s {
+            egui::Shape::Text(t) => out.push(t.galley.text().to_string()),
+            egui::Shape::Vec(v) => v.iter().for_each(|s| texts(s, out)),
+            _ => {}
+        }
+    }
+    let note = "The VECTORCRAFT_TITLEBAR environment variable chooses the title bar while it is set.";
+    let system_note = "System Title Bar takes precedence over this option while it is on.";
+    let restart_note = "Applies the next time VectorCraft starts.";
+    let supported = cfg!(not(any(target_arch = "wasm32", target_os = "macos", target_os = "windows")));
+    for (from_env, system) in [(false, false), (true, false), (false, true), (true, true)] {
+        let mut a = app();
+        a.titlebar_from_env = from_env;
+        open(&mut a, Some("User Interface"));
+        a.ui.dialog.as_mut().unwrap().fields.insert("systemTitleBar".into(), json!(system));
+        let ctx = egui::Context::default();
+        crate::theme::install_fonts(&ctx);
+        let mut out = ctx.run_ui(egui::RawInput::default(), |ui| show(&mut a, ui.ctx()));
+        out.textures_delta.clear();
+        let mut out = ctx.run_ui(egui::RawInput::default(), |ui| show(&mut a, ui.ctx()));
+        out.textures_delta.clear();
+        let mut shown = vec![];
+        out.shapes.iter().for_each(|c| texts(&c.shape, &mut shown));
+        assert_eq!(shown.iter().any(|t| t == note), supported && from_env, "{shown:?}");
+        assert_eq!(shown.iter().any(|t| t == system_note), supported && system, "{shown:?}");
+        // The next-launch note stays under this row on Linux and the BSDs, where it also covers
+        // System Title Bar, and under System Title Bar on Windows.
+        let restart_shown = if supported { !from_env } else { cfg!(all(not(target_arch = "wasm32"), not(target_os = "macos"))) };
+        assert_eq!(shown.iter().filter(|t| *t == restart_note).count(), usize::from(restart_shown), "{shown:?}");
+        // A click on the checkbox's label turns the preference on only when nothing takes precedence.
+        let label = out.shapes.iter().find_map(|c| match &c.shape {
+            egui::Shape::Text(t) if t.galley.text() == "VectorCraft Title Bar on Every Desktop" => Some(t.visual_bounding_rect()),
+            _ => None,
+        });
+        assert_eq!(label.is_some(), supported);
+        if let Some(r) = label {
+            for pressed in [true, false] {
+                let input = egui::RawInput {
+                    events: vec![
+                        egui::Event::PointerMoved(r.center()),
+                        egui::Event::PointerButton { pos: r.center(), button: egui::PointerButton::Primary, pressed, modifiers: Default::default() },
+                    ],
+                    ..Default::default()
+                };
+                let mut out = ctx.run_ui(input, |ui| show(&mut a, ui.ctx()));
+                out.textures_delta.clear();
+            }
+            assert_eq!(a.ui.dialog.as_ref().unwrap().bool("appTitleBar"), !from_env && !system, "variable {from_env}, System Title Bar {system}");
+        }
+    }
+}
+
 /// Performance › Linux Display Server (#2028): on Linux it shows the drawing-tablet note, and
 /// X11 (XWayland) When a Pen Is Attached is applied by OK and saved under the key the desktop
 /// app reads before the window opens.
diff --git a/docs/control-protocol.md b/docs/control-protocol.md
index 3fcec09b8..66721a9eb 100644
--- a/docs/control-protocol.md
+++ b/docs/control-protocol.md
@@ -331,6 +331,13 @@ instead: the OS title then shows the active document (`*name — VectorCraft` wi
 drops its brand mark. On Linux the app bar also drops its brand mark whenever the desktop draws the window's frame, with
 System Title Bar on or off. On macOS the window buttons are centred on the app bar; the web build is unchanged.
 
+On Linux and the BSDs, Preferences › User Interface › VectorCraft Title Bar on Every Desktop (`appTitleBar`, read
+when the app starts, off by default) turns off the desktop's frame and uses the app bar as the title bar in the
+sessions where the desktop would draw the frame: X11 sessions, Wayland compositors that draw server-side decorations
+such as KDE Plasma, and a window opened through XWayland. System Title Bar and `VECTORCRAFT_TITLEBAR` (`app`, or
+`system` or `desktop`) take precedence over it. The checkbox is dimmed while either applies, and a note under it names
+each one that applies.
+
 Fill/Stroke chips and panel shortcuts: the Control bar's and Properties' Fill and Stroke chips bring their proxy
 forward (`paint.toggleActive {fill}`) and open a popover with the Swatches panel (Shift-click: the Color panel's mixer);
 a swatch clicked there runs `paint.setFill` / `paint.setStroke`. The Properties panel has them with nothing selected
diff --git a/docs/development.md b/docs/development.md
index f7dd5ac59..3204c445b 100644
--- a/docs/development.md
+++ b/docs/development.md
@@ -118,7 +118,7 @@ A file opened from the file manager (double-click, Open With, a drop on the exec
 
 ## Linux: Wayland and X11
 
-On GNOME/Wayland, enable **Preferences › User Interface › System Title Bar** and restart to use winit's font-free Adwaita window controls (`wayland-csd-adwaita-notitle`); the existing custom title bar remains the Linux default.
+On GNOME/Wayland, enable **Preferences › User Interface › System Title Bar** and restart to use winit's font-free Adwaita window controls (`wayland-csd-adwaita-notitle`); the existing custom title bar remains the Linux default. On X11, on a Wayland compositor that draws server-side decorations such as KDE Plasma, and in a window opened through XWayland, enable **Preferences › User Interface › VectorCraft Title Bar on Every Desktop** and restart to use the app bar as the title bar instead of the desktop's frame. `VECTORCRAFT_TITLEBAR=app`, `=system` or `=desktop` chooses the frame for one run and takes precedence over VectorCraft Title Bar on Every Desktop.
 
 The window runs natively on Wayland (eframe's `wayland` feature) and on X11. On machines with two GPUs it renders on the one the desktop runs on unless Preferences say otherwise; see [Desktop graphics processor](#desktop-graphics-processor) (#502). The system clipboard (`apps/vectorcraft/src/clipboard.rs`) is arboard with its `wayland-data-control` feature:
 
diff --git a/docs/target-app-parity.md b/docs/target-app-parity.md
index 326166c27..7c43638fe 100644
--- a/docs/target-app-parity.md
+++ b/docs/target-app-parity.md
@@ -788,6 +788,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   - Shortcut sets other apps save as text (`.kys`) open in Import Shortcut Set from File › Open, from Edit › Keyboard Shortcuts › Import… in the desktop app, or from a drop on the window. It matches each entry to a tool, command or panel by name and decodes the file's key and modifier codes where VectorCraft's default shortcuts agree on them; the user answers the rest, and Apply fills the Keyboard Shortcuts dialog's working set. The answers are kept with the preferences for the next import (`shortcutSet.read`, `importMatches.*`).
   - Edit › Keyboard Shortcuts › Export Text… saves the set shown in the dialog as a UTF-8 text file, as the reference app's [Export keyboard shortcuts list as a text document](https://helpx.adobe.com/illustrator/desktop/get-started/preferences-and-settings/export-keyboard-shortcuts-list.html) page describes (`shortcuts.exportText {path?}`). The layout is VectorCraft's own: the set's name, then the Tools and Menu Commands rows in the dialog's order, each with its name, a tab and its shortcuts as the dialog shows them, and nothing after the tab for a row with no shortcut. Tests `shortcut_editor::tests::export_text_*` and `tests::picks::keyboard_shortcuts_export_text_writes_the_working_set_as_text`.
   - On Windows and Linux the app bar is the window's title bar (its own minimize, maximize and close buttons, drag to move, edges to resize), with the dragon app icon as the brand mark; dialogs and menus size to their content. As on a native menu bar, once one menu is open, moving the pointer onto another title opens that one.
+  - On Linux and the BSDs, Preferences › User Interface › VectorCraft Title Bar on Every Desktop (off by default) uses the app bar as the title bar from the next start in the sessions where the desktop would draw the window's frame (X11, Wayland compositors with server-side decorations such as KDE Plasma, a window opened through XWayland). System Title Bar and `VECTORCRAFT_TITLEBAR` take precedence over it.
   - Edit › Keyboard Shortcuts lists items of the menu bar and panel menus, as the reference app's [Customize keyboard shortcuts](https://web.archive.org/web/20221205131209id_/https://helpx.adobe.com/illustrator/using/customizing-keyboard-shortcuts.html) page describes for its Menu Commands. A menu command with no default shortcut that needs a value a key press does not give, such as File › Document Setup › Units (`document.setUnits {units}`), is listed only while the user has changed its shortcut. A command stays listed when a menu bar item runs it without a value or when it opens a dialog run without one, as the Variables panel's commands do.
   - A shortcut on the key left of 1 runs whatever character that key types, and Edit › Keyboard Shortcuts, the menus in the window, the command palette and tool tips show it as that character once the key has been pressed: `"` on a Turkish Q layout, `~` on a US layout as before. Shortcuts saved as `~` keep working (#4559).
   - On Windows a maximized window stays inside the work area with the taskbar on any edge (#3242, #3723).