diff --git a/apps/vectorcraft/src/main.rs b/apps/vectorcraft/src/main.rs
index 7594bc2344..6256b66d8b 100644
--- a/apps/vectorcraft/src/main.rs
+++ b/apps/vectorcraft/src/main.rs
@@ -373,11 +373,14 @@ fn main() -> std::process::ExitCode {
     // Display Server › X11 opens the window through XWayland instead, where file drops work (#1151),
     // and the other choices do so when a pen is attached, where the pen draws (#2028, #4967).
     #[cfg(target_os = "linux")]
+    let mut forced_to_x11 = false;
+    #[cfg(target_os = "linux")]
     let options = {
         let mut options = options;
         let pref = saved.as_ref().and_then(|ui| ui.engine_prefs.get("linuxDisplayServer")).and_then(serde_json::Value::as_str);
         if xwayland::wanted(pref, |name| std::env::var_os(name), xwayland::pen_attached) {
             if xwayland::x11_libraries_found() {
+                forced_to_x11 = true;
                 if pref != Some("x11") {
                     log::info!("pen found: opening the window through XWayland, where the pen works (VECTORCRAFT_NATIVE_WAYLAND=1 keeps Wayland)");
                 } else {
@@ -393,6 +396,11 @@ fn main() -> std::process::ExitCode {
         }
         options
     };
+    #[cfg(not(target_os = "linux"))]
+    let forced_to_x11 = false;
+    // Preferences › User Interface notes under System Title Bar when the desktop draws the frame
+    // with it on or off.
+    let desktop_keeps_frame = titlebar::desktop_keeps_frame(forced_to_x11);
     // With Windows Ink, winit reports a pen as a touch and drops its barrel button and which end
     // is down; the message hook notes each pointer contact and whether it starts with the barrel
     // button held, and writes the pen's end into the pen feed (`windows_stylus`). It also notes the
@@ -594,6 +602,7 @@ fn main() -> std::process::ExitCode {
                 app.titlebar_from_env = titlebar_from_env();
                 app.custom_titlebar = custom_titlebar;
                 app.desktop_frame = !custom_titlebar;
+                app.desktop_keeps_frame = desktop_keeps_frame;
                 if let Some(port) = control_port {
                     let rx = control_server::start(port, cc.egui_ctx.clone());
                     app = app.with_control(rx).with_automation_roots(roots.clone());
diff --git a/apps/vectorcraft/src/tests.rs b/apps/vectorcraft/src/tests.rs
index 6ae80944a6..6a89f42703 100644
--- a/apps/vectorcraft/src/tests.rs
+++ b/apps/vectorcraft/src/tests.rs
@@ -319,6 +319,34 @@ fn the_titlebar_variable_decides_the_frame_before_the_window_opens() {
     }
 }
 
+/// Preferences says under System Title Bar that the desktop draws the frame with it on or off
+/// exactly where the start frame without VectorCraft Title Bar on Every Desktop is the desktop's
+/// with System Title Bar off as well as on and `VECTORCRAFT_TITLEBAR` is unset: Linux and the BSDs
+/// only.
+#[test]
+fn the_desktop_keeps_the_frame_where_system_title_bar_does_not_change_it() {
+    use crate::titlebar::desktop_keeps_frame_from;
+    use craft_window::{Frame, Layout};
+    let linux = cfg!(not(any(target_os = "macos", target_os = "windows")));
+    for probed in [Frame::Desktop, Frame::App(Layout::default())] {
+        for forced_to_x11 in [false, true] {
+            let frame = super::start_frame(probed.clone(), None, forced_to_x11, false);
+            let either_way = !super::custom_titlebar_from(&frame, false) && !super::custom_titlebar_from(&frame, true);
+            assert_eq!(desktop_keeps_frame_from(&probed, None, forced_to_x11), linux && either_way, "{probed:?} {forced_to_x11}");
+        }
+    }
+    // KDE, Sway and X11, and GNOME through XWayland, keep the desktop's frame; GNOME on Wayland does not.
+    assert_eq!(desktop_keeps_frame_from(&Frame::Desktop, None, false), linux);
+    assert_eq!(desktop_keeps_frame_from(&Frame::App(Layout::default()), None, true), linux);
+    assert!(!desktop_keeps_frame_from(&Frame::App(Layout::default()), None, false));
+    // While `VECTORCRAFT_TITLEBAR` chooses the frame, System Title Bar does not apply and there is no note.
+    for (frame, overridden) in [(Frame::App(Layout::default()), Some(true)), (Frame::Desktop, Some(false))] {
+        for forced_to_x11 in [false, true] {
+            assert!(!desktop_keeps_frame_from(&frame, overridden, forced_to_x11), "{overridden:?} {forced_to_x11}");
+        }
+    }
+}
+
 /// 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 fc6e395927..c0ed76ad1f 100644
--- a/apps/vectorcraft/src/titlebar.rs
+++ b/apps/vectorcraft/src/titlebar.rs
@@ -163,6 +163,25 @@ pub(crate) fn custom_titlebar(saved: Option<&vectorcraft_ui_egui::UiState>) -> b
     custom_titlebar_from(&frame, opted_into_system)
 }
 
+/// Whether the desktop would draw this window's frame with System Title Bar on or off while
+/// VectorCraft Title Bar on Every Desktop is off: `VECTORCRAFT_TITLEBAR` is not set to `app`,
+/// `system` or `desktop` (`overridden` is `None`), and the probe chose
+/// [`craft_window::Frame::Desktop`] or the window opens through XWayland (`forced_to_x11`)
+/// ([`app_draws_frame`]). The saved VectorCraft Title Bar on Every Desktop is left out, so the value
+/// stays `true` on such a desktop while that preference gives the app the frame. Always `false` on
+/// macOS and Windows, where System Title Bar decides the frame by itself.
+pub(crate) fn desktop_keeps_frame_from(probed: &craft_window::Frame, overridden: Option<bool>, forced_to_x11: bool) -> bool {
+    let probed_app = matches!(probed, craft_window::Frame::App(_));
+    cfg!(not(any(target_os = "macos", target_os = "windows"))) && overridden.is_none() && !app_draws_frame(probed_app, None, forced_to_x11, false)
+}
+
+/// [`desktop_keeps_frame_from`] for this start's probe, given whether the launch path opens the
+/// window through XWayland.
+pub(crate) fn desktop_keeps_frame(forced_to_x11: bool) -> bool {
+    let choice = probed_choice();
+    desktop_keeps_frame_from(choice.frame(), choice.overridden(), forced_to_x11)
+}
+
 pub(crate) fn native_options(custom_titlebar: bool) -> eframe::NativeOptions {
     eframe::NativeOptions {
         viewport: egui::ViewportBuilder::default()
diff --git a/crates/ui-egui/src/app.rs b/crates/ui-egui/src/app.rs
index 678616186b..49864cba24 100644
--- a/crates/ui-egui/src/app.rs
+++ b/crates/ui-egui/src/app.rs
@@ -135,6 +135,7 @@ impl VectorcraftApp {
             titlebar_from_env: false,
             custom_titlebar: false,
             desktop_frame: false,
+            desktop_keeps_frame: false,
             last_window_title: String::new(),
             fullscreen_for_mode: false,
             graphics_adapter: None,
diff --git a/crates/ui-egui/src/i18n/bg.tsv b/crates/ui-egui/src/i18n/bg.tsv
index 4a79f37e72..b76b743ee7 100644
--- a/crates/ui-egui/src/i18n/bg.tsv
+++ b/crates/ui-egui/src/i18n/bg.tsv
@@ -5025,6 +5025,7 @@ effect	Soft	Меко
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Докато „Заглавна лента на VectorCraft на всеки работен плот“ е изключена, този работен плот изчертава заглавната лента на прозореца независимо дали тази опция е включена.
 	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 5982685036..4b3405f294 100644
--- a/crates/ui-egui/src/i18n/bs.tsv
+++ b/crates/ui-egui/src/i18n/bs.tsv
@@ -982,6 +982,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Dok je Naslovna traka VectorCrafta na svakoj radnoj površini isključena, ova radna površina crta naslovnu traku prozora bez obzira na to je li ova opcija uključena.
 	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 9dfc5458b5..0149bc7e1b 100644
--- a/crates/ui-egui/src/i18n/ca.tsv
+++ b/crates/ui-egui/src/i18n/ca.tsv
@@ -4613,6 +4613,7 @@ digits	Malayalam	Malaiàlam
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Mentre Barra de títol de VectorCraft a tots els escriptoris està desactivada, aquest escriptori dibuixa la barra de títol de la finestra tant si aquesta opció està activada com si no.
 	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 edaad350a0..982a0028d7 100644
--- a/crates/ui-egui/src/i18n/cs.tsv
+++ b/crates/ui-egui/src/i18n/cs.tsv
@@ -1001,6 +1001,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Dokud je Záhlaví okna VectorCraftu v každém desktopovém prostředí vypnuté, toto desktopové prostředí kreslí záhlaví okna bez ohledu na to, zda je tato volba zapnutá.
 	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 10848dd3f7..7b8cdf77b9 100644
--- a/crates/ui-egui/src/i18n/da.tsv
+++ b/crates/ui-egui/src/i18n/da.tsv
@@ -924,6 +924,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Så længe VectorCrafts titellinje på alle skriveborde er slået fra, tegner dette skrivebord vinduets titellinje, uanset om denne indstilling er slået til eller fra.
 	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 cd6a428631..f763504e73 100644
--- a/crates/ui-egui/src/i18n/de.tsv
+++ b/crates/ui-egui/src/i18n/de.tsv
@@ -5216,6 +5216,7 @@ theme	Appearance	Erscheinungsbild
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Solange VectorCraft-Titelleiste auf jedem Desktop ausgeschaltet ist, zeichnet dieser Desktop die Titelleiste des Fensters, ob diese Option ein- oder ausgeschaltet ist.
 # 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 fc76658c72..e53503f3d9 100644
--- a/crates/ui-egui/src/i18n/el.tsv
+++ b/crates/ui-egui/src/i18n/el.tsv
@@ -5231,6 +5231,7 @@ digits	Malayalam	Μαλαγιάλαμ
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Όσο η Γραμμή τίτλου του VectorCraft σε κάθε επιφάνεια εργασίας είναι ανενεργή, αυτή η επιφάνεια εργασίας σχεδιάζει τη γραμμή τίτλου του παραθύρου, είτε αυτή η επιλογή είναι ενεργή είτε όχι.
 	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 c7c9c8bc1e..afaa323ca3 100644
--- a/crates/ui-egui/src/i18n/es.tsv
+++ b/crates/ui-egui/src/i18n/es.tsv
@@ -5320,6 +5320,7 @@ axis	Both	Ambos
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Mientras Barra de título de VectorCraft en todos los escritorios está desactivada, este escritorio dibuja la barra de título de la ventana tanto si esta opción está activada como si no.
 	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 126e7854f9..0b7b97e6af 100644
--- a/crates/ui-egui/src/i18n/fi.tsv
+++ b/crates/ui-egui/src/i18n/fi.tsv
@@ -985,6 +985,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Niin kauan kuin VectorCraftin otsikkorivi kaikissa työpöytäympäristöissä ei ole käytössä, tämä työpöytäympäristö piirtää ikkunan otsikkorivin, oli tämä asetus käytössä tai ei.
 	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 3941bf0497..2801eac0f5 100644
--- a/crates/ui-egui/src/i18n/fr.tsv
+++ b/crates/ui-egui/src/i18n/fr.tsv
@@ -5328,6 +5328,7 @@ effect	Soft	Doux
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Tant que Barre de titre de VectorCraft sur tous les bureaux est désactivée, ce bureau dessine la barre de titre de la fenêtre, que cette option soit activée ou non.
 	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 bf2f223fc0..d4bd31ad4b 100644
--- a/crates/ui-egui/src/i18n/hi.tsv
+++ b/crates/ui-egui/src/i18n/hi.tsv
@@ -4997,6 +4997,7 @@ antiAlias	Sharp	शार्प
 	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।
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	जब तक हर डेस्कटॉप पर VectorCraft टाइटल बार बंद है, यह डेस्कटॉप विंडो का टाइटल बार बनाता है, चाहे यह विकल्प चालू हो या बंद।
 	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 969b923a1c..901dd42259 100644
--- a/crates/ui-egui/src/i18n/hu.tsv
+++ b/crates/ui-egui/src/i18n/hu.tsv
@@ -4311,6 +4311,7 @@ mark-style	Japanese	Japán
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Amíg a VectorCraft címsora minden asztali környezetben beállítás ki van kapcsolva, ez az asztali környezet rajzolja az ablak címsorát, akár be van kapcsolva ez a beállítás, akár nem.
 	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 55cff9798e..da098e8ab8 100644
--- a/crates/ui-egui/src/i18n/id.tsv
+++ b/crates/ui-egui/src/i18n/id.tsv
@@ -924,6 +924,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Selama Bilah judul VectorCraft di setiap desktop nonaktif, desktop ini menggambar bilah judul jendela, baik opsi ini aktif maupun tidak.
 	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 ea10433ebd..3b4db61dca 100644
--- a/crates/ui-egui/src/i18n/it.tsv
+++ b/crates/ui-egui/src/i18n/it.tsv
@@ -5374,6 +5374,7 @@ effect	Regular	Normale
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Finché Barra del titolo di VectorCraft su ogni desktop è disattivata, questo desktop disegna la barra del titolo della finestra, sia con questa opzione attiva sia disattivata.
 	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 ca80ba3a83..b5d1ac6658 100644
--- a/crates/ui-egui/src/i18n/ja.tsv
+++ b/crates/ui-egui/src/i18n/ja.tsv
@@ -5416,6 +5416,7 @@ effect	Vertical	垂直
 	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。
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	すべてのデスクトップで VectorCraft のタイトルバーがオフの間は、このオプションのオンとオフにかかわらず、このデスクトップがウィンドウのタイトルバーを描画します。
 	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 0778b2e405..4e74ee8a9b 100644
--- a/crates/ui-egui/src/i18n/ka.tsv
+++ b/crates/ui-egui/src/i18n/ka.tsv
@@ -890,6 +890,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	სანამ VectorCraft-ის სათაურის ზოლი ყველა სამუშაო მაგიდაზე გამორთულია, ეს სამუშაო მაგიდა ფანჯრის სათაურის ზოლს ხატავს, ეს პარამეტრი ჩართულია თუ გამორთული.
 	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 d0e5750000..69c19912f2 100644
--- a/crates/ui-egui/src/i18n/ko.tsv
+++ b/crates/ui-egui/src/i18n/ko.tsv
@@ -5343,6 +5343,7 @@ effect	Vertical	세로
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	모든 데스크톱에서 VectorCraft 제목 표시줄이 꺼져 있는 동안에는 이 옵션을 켜든 끄든 이 데스크톱이 창의 제목 표시줄을 그립니다.
 	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 0d4ceaf795..18c6109863 100644
--- a/crates/ui-egui/src/i18n/nl.tsv
+++ b/crates/ui-egui/src/i18n/nl.tsv
@@ -1441,6 +1441,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Zolang VectorCraft-titelbalk op elk bureaublad is uitgeschakeld, tekent dit bureaublad de titelbalk van het venster, of deze optie nu aan of uit staat.
 	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 7911a22071..fbf028f273 100644
--- a/crates/ui-egui/src/i18n/pl.tsv
+++ b/crates/ui-egui/src/i18n/pl.tsv
@@ -942,6 +942,7 @@
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Dopóki Pasek tytułu VectorCraft na każdym pulpicie jest wyłączony, ten pulpit rysuje pasek tytułu okna niezależnie od tego, czy ta opcja jest włączona.
 	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 c2349359ed..8dd4c8d51f 100644
--- a/crates/ui-egui/src/i18n/pt-br.tsv
+++ b/crates/ui-egui/src/i18n/pt-br.tsv
@@ -3490,6 +3490,7 @@ imageTrace	Outline	Contorno
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Enquanto Barra de título do VectorCraft em todas as áreas de trabalho estiver desativada, esta área de trabalho desenha a barra de título da janela com esta opção ativada ou desativada.
 	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 f878461da5..85732d4509 100644
--- a/crates/ui-egui/src/i18n/ru.tsv
+++ b/crates/ui-egui/src/i18n/ru.tsv
@@ -5359,6 +5359,7 @@ axis	Both	Оба
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Пока «Строка заголовка VectorCraft на любом рабочем столе» выключена, этот рабочий стол рисует строку заголовка окна независимо от того, включён ли этот параметр.
 	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 70efcf795f..08eb84c043 100644
--- a/crates/ui-egui/src/i18n/sv.tsv
+++ b/crates/ui-egui/src/i18n/sv.tsv
@@ -5233,6 +5233,7 @@ effect	Soft	Mjuk
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Så länge VectorCrafts namnlist på alla skrivbord är av ritar det här skrivbordet fönstrets namnlist, oavsett om det här alternativet är på eller av.
 	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 ff88601736..9b8e0ee35e 100644
--- a/crates/ui-egui/src/i18n/tr.tsv
+++ b/crates/ui-egui/src/i18n/tr.tsv
@@ -5035,6 +5035,7 @@ effect	Soft	Yumuşak
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Her Masaüstünde VectorCraft Başlık Çubuğu kapalı olduğu sürece, bu seçenek açık da olsa kapalı da olsa pencerenin başlık çubuğunu bu masaüstü çizer.
 	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 a7b3ea2c2e..882c5aaa4d 100644
--- a/crates/ui-egui/src/i18n/uk.tsv
+++ b/crates/ui-egui/src/i18n/uk.tsv
@@ -5356,6 +5356,7 @@ axis	Both	Обидві
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Поки «Рядок заголовка VectorCraft на будь-якій стільниці» вимкнено, ця стільниця малює рядок заголовка вікна незалежно від того, чи ввімкнено цей параметр.
 	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 518d89e4b6..716765cbee 100644
--- a/crates/ui-egui/src/i18n/vi.tsv
+++ b/crates/ui-egui/src/i18n/vi.tsv
@@ -4036,6 +4036,7 @@ mark-style	Japanese	Kiểu Nhật
 	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.
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	Khi Thanh tiêu đề VectorCraft trên mọi màn hình nền đang tắt, màn hình nền này vẽ thanh tiêu đề của cửa sổ dù tùy chọn này bật hay tắt.
 	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 26fb9e0c1b..ae2a8a683e 100644
--- a/crates/ui-egui/src/i18n/zh-hans.tsv
+++ b/crates/ui-egui/src/i18n/zh-hans.tsv
@@ -5656,6 +5656,7 @@ effect	Vertical	垂直
 	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。
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	未开启“在所有桌面上使用 VectorCraft 标题栏”时，无论此选项是否开启，此桌面都会绘制窗口的标题栏。
 	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 5685430cc8..e83f859bc4 100644
--- a/crates/ui-egui/src/i18n/zh-hant.tsv
+++ b/crates/ui-egui/src/i18n/zh-hant.tsv
@@ -5490,6 +5490,7 @@ effect	Soft	柔和
 	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。
+	This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.	未開啟「在所有桌面上使用 VectorCraft 標題列」時，無論此選項是否開啟，此桌面都會繪製視窗的標題列。
 	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 8ee864cd26..589df07cd7 100644
--- a/crates/ui-egui/src/lib.rs
+++ b/crates/ui-egui/src/lib.rs
@@ -231,6 +231,12 @@ pub struct VectorcraftApp {
     /// icon and title. Set by the desktop app when it opens the window; `false` for embedders
     /// without a window of their own.
     pub desktop_frame: bool,
+    /// Linux and the BSDs: `VECTORCRAFT_TITLEBAR` is unset and the desktop would draw the window's
+    /// frame on this session with Preferences › User Interface › System Title Bar on or off while
+    /// VectorCraft Title Bar on Every Desktop is off, so the dialog says so under System Title Bar.
+    /// It stays `true` while VectorCraft Title Bar on Every Desktop gives the app the frame. Set by
+    /// the desktop app when it opens the window; `false` elsewhere.
+    pub desktop_keeps_frame: bool,
     /// Last window title sent to the OS (`ViewportCommand::Title`, see `chrome::sync_window_title`):
     /// sent again only when it changes, so idle frames don't spam the backend.
     pub(crate) last_window_title: String,
diff --git a/crates/ui-egui/src/prefs_dialog.rs b/crates/ui-egui/src/prefs_dialog.rs
index fbea47770b..9029459195 100644
--- a/crates/ui-egui/src/prefs_dialog.rs
+++ b/crates/ui-egui/src/prefs_dialog.rs
@@ -42,6 +42,9 @@ pub fn open(app: &mut VectorcraftApp, category: Option<&str>) {
     // Read-only: whether VECTORCRAFT_TITLEBAR chose this window's frame (System Title Bar's dimmed
     // row and VectorCraft Title Bar on Every Desktop's note).
     fields.insert("__titlebarFromEnv".into(), json!(app.titlebar_from_env));
+    // Read-only: whether the desktop would draw this window's frame with System Title Bar on or off
+    // while VectorCraft Title Bar on Every Desktop is off (System Title Bar's note).
+    fields.insert("__desktopKeepsFrame".into(), json!(app.desktop_keeps_frame));
     fields.insert("__search".into(), json!(""));
     fields.insert("__focusSearch".into(), json!(true));
     app.ui.dialog = Some(Dialog { kind: "preferences".into(), fields });
@@ -535,6 +538,14 @@ fn category_fields(ui: &mut egui::Ui, app: &mut VectorcraftApp, d: &mut Dialog,
                     if !APP_TITLE_BAR_SHOWN {
                         ui.label(egui::RichText::new(tl!("Applies the next time VectorCraft starts.")).color(t.text_dim).size(11.0));
                     }
+                    // Where the desktop draws the frame, the desktop's title bar stays with this
+                    // option on or off until VectorCraft Title Bar on Every Desktop is turned on.
+                    if APP_TITLE_BAR_SHOWN && d.bool("__desktopKeepsFrame") && !d.bool("__titlebarFromEnv") && !d.bool("appTitleBar") {
+                        let note = tl!(
+                            "This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off."
+                        );
+                        ui.label(egui::RichText::new(note).color(t.text_dim).size(11.0));
+                    }
                 }
             }
             // Linux and the BSDs only, where the desktop may draw the frame: dimmed while System
diff --git a/crates/ui-egui/src/prefs_dialog/tests.rs b/crates/ui-egui/src/prefs_dialog/tests.rs
index fe8dc72aa3..6c7382200f 100644
--- a/crates/ui-egui/src/prefs_dialog/tests.rs
+++ b/crates/ui-egui/src/prefs_dialog/tests.rs
@@ -581,6 +581,46 @@ fn system_title_bar_is_dimmed_while_the_environment_variable_chooses_the_frame()
     }
 }
 
+/// Where the desktop draws the frame with System Title Bar on or off (KDE, Sway, X11, a window
+/// opened through XWayland), a note under System Title Bar says so while VectorCraft Title Bar on
+/// Every Desktop is off and VECTORCRAFT_TITLEBAR is unset. Linux and the BSDs only.
+#[test]
+fn system_title_bar_says_when_the_desktop_keeps_the_frame() {
+    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 = "This desktop draws the window's title bar with this option on or off while VectorCraft Title Bar on Every Desktop is off.";
+    let supported = cfg!(not(any(target_arch = "wasm32", target_os = "macos", target_os = "windows")));
+    for keeps in [false, true] {
+        for from_env in [false, true] {
+            for (app_title_bar, system) in [(false, false), (false, true), (true, false), (true, true)] {
+                let mut a = app();
+                a.desktop_keeps_frame = keeps;
+                a.titlebar_from_env = from_env;
+                open(&mut a, Some("User Interface"));
+                let fields = &mut a.ui.dialog.as_mut().unwrap().fields;
+                fields.insert("appTitleBar".into(), json!(app_title_bar));
+                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));
+                let expected = supported && keeps && !from_env && !app_title_bar;
+                let label = format!("keeps {keeps}, variable {from_env}, app title bar {app_title_bar}, system {system}: {shown:?}");
+                assert_eq!(shown.iter().any(|t| t == note), expected, "{label}");
+            }
+        }
+    }
+}
+
 /// 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 45f4d0141b..246beb8fa1 100644
--- a/docs/control-protocol.md
+++ b/docs/control-protocol.md
@@ -363,7 +363,11 @@ each one that applies. `VECTORCRAFT_TITLEBAR` also takes precedence over System
 `app` keeps the app bar as the title bar with System Title Bar on. Only the values `app`, `system` and `desktop` take
 precedence (case-sensitive, surrounding spaces ignored); any other value, such as `unknown`, is ignored and does not
 override System Title Bar. While the variable is set to one of those values, the Preferences dialog dims
-System Title Bar and its `__titlebarFromEnv` field is `true`.
+System Title Bar and its `__titlebarFromEnv` field is `true`. The dialog's `__desktopKeepsFrame` field is `true` when
+the variable is unset and the desktop would draw the frame without VectorCraft Title Bar on Every Desktop, whether
+or not that preference is on. The app works it out when it starts, so a Linux Display Server change does not change
+it until the next start. While the field is `true` and VectorCraft Title Bar on Every Desktop is off in the dialog, a
+note under System Title Bar says that the desktop draws the title bar with System Title Bar on or off.
 
 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);
diff --git a/docs/target-app-parity.md b/docs/target-app-parity.md
index 26681e5b7f..1e1635d326 100644
--- a/docs/target-app-parity.md
+++ b/docs/target-app-parity.md
@@ -1000,6 +1000,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   - 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, and `VECTORCRAFT_TITLEBAR` also takes precedence over System Title Bar for the run it is set in. Only the values `app`, `system` and `desktop` take precedence (case-sensitive, surrounding spaces ignored); any other value, such as `unknown`, is ignored and does not override System Title Bar.
+  - On Linux and the BSDs, in the sessions where the desktop would draw the window's frame, Preferences › User Interface shows a note under System Title Bar while VectorCraft Title Bar on Every Desktop is off and `VECTORCRAFT_TITLEBAR` is unset: the desktop draws the title bar with System Title Bar on or off. The app works out the session when it starts, so a Linux Display Server change shows in the note from the next start. Tests `prefs_dialog::tests::system_title_bar_says_when_the_desktop_keeps_the_frame` and `tests::the_desktop_keeps_the_frame_where_system_title_bar_does_not_change_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.
   - No two rows of Edit › Keyboard Shortcuts have the same English name (VectorCraft's own rule). A command that an item of the menu bar runs is listed under that item's menu path (Window › Swatch Libraries › Other Library…), a command whose id extends another command's id is listed under that command's label (Character Style Options › Reset Panel), and the rows that still share a name show their id after it, except the one row an item of the menu bar runs (File › New… and File › New… (file.new)). The search finds a row by the id it shows, and a message about a shortcut already in use names the other row with its group. Test `shortcut_editor::tests::no_two_entries_have_the_same_name`.
   - 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).