diff --git a/crates/cad/src/lib.rs b/crates/cad/src/lib.rs
index 51bcd8c2..4afe84e3 100644
--- a/crates/cad/src/lib.rs
+++ b/crates/cad/src/lib.rs
@@ -277,8 +277,6 @@ pub struct DxfOptions {
     pub colors: ColorDepth,
     pub raster: RasterFormat,
     pub preserve: Preserve,
-    /// Write one zero-width centerline per stroked path, ignoring its fill and stroke outline.
-    pub centerline_strokes: bool,
     /// Alter Paths for Appearance: every stroke is written as the filled area it paints.
     pub alter_paths: bool,
     /// Type is written as glyph outlines (always with [`Preserve::Appearance`]).
@@ -299,7 +297,6 @@ impl Default for DxfOptions {
             colors: ColorDepth::default(),
             raster: RasterFormat::default(),
             preserve: Preserve::default(),
-            centerline_strokes: false,
             alter_paths: false,
             outline_text: false,
             region: Rect::ZERO,
diff --git a/crates/cad/src/scene.rs b/crates/cad/src/scene.rs
index 5cee1b50..22fb1887 100644
--- a/crates/cad/src/scene.rs
+++ b/crates/cad/src/scene.rs
@@ -457,39 +457,21 @@ impl<'a> Scene<'a> {
         if bp.elements().is_empty() {
             return;
         }
-        let centerline = self.o.centerline_strokes
-            && n.appearance
-                .items
-                .iter()
-                .any(|item| matches!(item, AppearanceItem::Stroke(st) if st.visible && st.width > 0.0 && st.width.is_finite()));
-        let mut wrote_centerline = false;
         for item in &n.appearance.items {
             match item {
-                AppearanceItem::Fill(_) if centerline => {}
                 AppearanceItem::Fill(f) if f.visible => {
                     if let Some(rgb) = self.paint_rgb(&f.paint) {
                         let style = self.style(rgb, f.opacity, None, None);
                         self.area(bp, rule, &style, false);
                     }
                 }
-                // One centerline per path, however many strokes it has.
-                AppearanceItem::Stroke(st) if st.visible && st.width > 0.0 && st.width.is_finite() && !(centerline && wrote_centerline) => {
-                    self.stroke(bp, rule, st, centerline);
-                    wrote_centerline |= centerline;
-                }
+                AppearanceItem::Stroke(st) if st.visible && st.width > 0.0 && st.width.is_finite() => self.stroke(bp, rule, st),
                 _ => {}
             }
         }
     }
 
-    fn stroke(&mut self, bp: &BezPath, rule: FillRule, st: &StrokeLayer, centerline: bool) {
-        if centerline {
-            let Some(rgb) = self.paint_rgb(&st.paint) else { return };
-            let linetype = st.dash.as_ref().filter(|d| d.is_dashed()).map(|d| self.linetype(d));
-            let style = self.style(rgb, st.opacity, Some(0.0), linetype);
-            self.lines(bp, &style, 0.0);
-            return;
-        }
+    fn stroke(&mut self, bp: &BezPath, rule: FillRule, st: &StrokeLayer) {
         let appearance = self.o.preserve == Preserve::Appearance;
         if appearance
             && st.brush.is_some()
diff --git a/crates/cad/src/tests.rs b/crates/cad/src/tests.rs
index 37d1dbc8..37bebbd0 100644
--- a/crates/cad/src/tests.rs
+++ b/crates/cad/src/tests.rs
@@ -137,15 +137,6 @@ fn r12_viewport_has_no_duplicate_group_codes() {
     assert_eq!(z, Some(1.0), "the view direction looks down the z axis");
 }
 
-#[test]
-fn centerline_strokes_write_one_line_per_stroked_path_and_no_fill() {
-    let d = shapes_doc();
-    let out = export(&d, &DxfOptions { centerline_strokes: true, ..opts(&d) }).unwrap();
-    let k = kinds(&out);
-    assert!(k.iter().all(|kind| kind != "HATCH"), "the stroked rectangle's fill is left out: {k:?}");
-    assert_eq!(k.len(), 2, "one centerline for each of the two stroked paths: {k:?}");
-}
-
 #[test]
 fn lines_are_lwpolylines_curves_splines_and_fills_hatches() {
     let d = shapes_doc();
diff --git a/crates/engine/src/cmd/fileio/dxf.rs b/crates/engine/src/cmd/fileio/dxf.rs
index 30682760..c13b4fdb 100644
--- a/crates/engine/src/cmd/fileio/dxf.rs
+++ b/crates/engine/src/cmd/fileio/dxf.rs
@@ -21,7 +21,7 @@ pub fn specs() -> Vec<CommandSpec> {
         "Export DXF",
         [],
         None,
-        "{path?, version?: R12|R13|R14|2000|2004|2007|2010|2013|2018 (default), unit?: mm (default; any unit name: pt, in, cm…), scale?: 1 (drawing units per unit), scaleLineweights?: false, colors?: 8|16|256|true (default; true colour needs 2004+, else 256), rasterFormat?: png (default)|jpeg (placed images, written next to the file), preserve?: appearance (default: type as outlines; strokes a CAD line can't draw as filled outlines; brush art)|editability (type as text; every stroke a line with its lineweight and dashes), centerlineStrokes?: false (one zero-width centerline per stroked path; omits its fill), alterPaths?: false (every stroke as its filled outline), outlineText?: false, selectedOnly?: false (the selected objects, in their layers), artboard?: 0 (the origin is its bottom-left corner), useArtboards?: true (one drawing per chosen artboard, artboards?/range?, holding the art over it: {stem}-{artboard}.dxf) | false (the origin at the art's bounds)} → {path, bytes, warnings, files?, linked?: [image files]}; no path → {dataBase64, …, linked?: [{name, dataBase64}]}. Layers become DXF layers (hidden: off; locked; non-printing: not plotted); paths become polylines and splines, fills their outlines (which laser and cutter software reads) and solid hatches. Same as document.export {format: dxf}",
+        "{path?, version?: R12|R13|R14|2000|2004|2007|2010|2013|2018 (default), unit?: mm (default; any unit name: pt, in, cm…), scale?: 1 (drawing units per unit), scaleLineweights?: false, colors?: 8|16|256|true (default; true colour needs 2004+, else 256), rasterFormat?: png (default)|jpeg (placed images, written next to the file), preserve?: appearance (default: type as outlines; strokes a CAD line can't draw as filled outlines; brush art)|editability (type as text; every stroke a line with its lineweight and dashes), alterPaths?: false (every stroke as its filled outline), outlineText?: false, selectedOnly?: false (the selected objects, in their layers), artboard?: 0 (the origin is its bottom-left corner), useArtboards?: true (one drawing per chosen artboard, artboards?/range?, holding the art over it: {stem}-{artboard}.dxf) | false (the origin at the art's bounds)} → {path, bytes, warnings, files?, linked?: [image files]}; no path → {dataBase64, …, linked?: [{name, dataBase64}]}. Layers become DXF layers (hidden: off; locked; non-printing: not plotted); paths become polylines and splines, fills their outlines (which laser and cutter software reads) and solid hatches. Same as document.export {format: dxf}",
         has_doc,
         export_dxf
     )]
@@ -60,12 +60,6 @@ pub(super) const OPTIONS: &[FormatOption] = &[
         default: "\"appearance\"",
         description: "appearance (type as outlines, strokes a CAD line can't draw as filled outlines) or editability (type as text, strokes as lines)",
     },
-    FormatOption {
-        name: "centerlineStrokes",
-        ty: "boolean",
-        default: "false",
-        description: "one zero-width centerline per stroked path; omits the path's fill and stroke outline",
-    },
     FormatOption {
         name: "alterPaths",
         ty: "boolean",
@@ -127,7 +121,6 @@ struct Params {
     colors: Option<Value>,
     raster_format: Option<String>,
     preserve: Option<String>,
-    centerline_strokes: Option<bool>,
     alter_paths: Option<bool>,
     outline_text: Option<bool>,
 }
@@ -170,7 +163,6 @@ fn parse(p: &Value) -> Result<(DxfOptions, ArtboardPick)> {
         colors: choice("colors", q.colors.as_ref().map(text), ColorDepth::from_id, d.colors, "8, 16, 256 or true")?,
         raster: choice("rasterFormat", q.raster_format, RasterFormat::from_id, d.raster, "png or jpeg")?,
         preserve: choice("preserve", q.preserve, Preserve::from_id, d.preserve, "appearance or editability")?,
-        centerline_strokes: q.centerline_strokes.unwrap_or(d.centerline_strokes),
         alter_paths: q.alter_paths.unwrap_or(d.alter_paths),
         outline_text: q.outline_text.unwrap_or(d.outline_text),
         ..d
diff --git a/crates/ui-egui/src/dialogs/dxf_options.rs b/crates/ui-egui/src/dialogs/dxf_options.rs
index 3ed3278d..3593dfe9 100644
--- a/crates/ui-egui/src/dialogs/dxf_options.rs
+++ b/crates/ui-egui/src/dialogs/dxf_options.rs
@@ -1,6 +1,6 @@
 //! DXF Options (Export As → DXF): version, scale (1 unit of the art = N drawing units) and
 //! lineweights, number of colours, the format of placed images, Preserve Appearance or Maximize
-//! Editability, centerline stroke output, Export Selected Art Only, Alter Paths for Appearance and Outline Text.
+//! Editability, and Export Selected Art Only, Alter Paths for Appearance and Outline Text.
 //!
 //! Fields: `document.export` params (`format: dxf`, `path?`, the artboard choice) and the DXF
 //! options of `document.exportDxf`. OK remembers the options for next time and writes the file
@@ -42,7 +42,6 @@ fn defaults() -> Map<String, Value> {
         ("colors", json!(ColorDepth::default().id())),
         ("rasterFormat", json!(RasterFormat::default().id())),
         ("preserve", json!(Preserve::default().id())),
-        ("centerlineStrokes", json!(false)),
         ("alterPaths", json!(false)),
         ("outlineText", json!(false)),
         ("selectedOnly", json!(false)),
@@ -66,18 +65,6 @@ pub fn open(app: &mut VectorcraftApp, params: &Value) {
 }
 
 fn body(app: &mut VectorcraftApp, ui: &mut egui::Ui, d: &mut Dialog) -> bool {
-    if widgets::flat_button(ui, tl!("3ds Max — R12 Linework"), 210.0).clicked() {
-        d.fields.insert("version".into(), json!(DxfVersion::R12.id()));
-        d.fields.insert("unit".into(), json!(Unit::Millimeters.label()));
-        d.fields.insert("scale".into(), json!(1));
-        d.fields.insert("preserve".into(), json!(Preserve::Editability.id()));
-        d.fields.insert("centerlineStrokes".into(), json!(true));
-        d.fields.insert("colors".into(), json!(ColorDepth::Aci256.id()));
-        d.fields.insert("outlineText".into(), json!(true));
-        d.fields.insert("alterPaths".into(), json!(false));
-        d.fields.insert("scaleLineweights".into(), json!(false));
-    }
-    ui.add_space(6.0);
     let versions: Vec<(&str, &str)> = DxfVersion::ALL.iter().map(|v| (v.id(), v.label())).collect();
     choice(ui, d, "version", tl!("Version:"), &versions);
     ui.add_space(4.0);
@@ -112,7 +99,6 @@ fn body(app: &mut VectorcraftApp, ui: &mut egui::Ui, d: &mut Dialog) -> bool {
         d.fields.insert("selectedOnly".into(), json!(!d.bool("selectedOnly")));
     }
     check(ui, d, "alterPaths", tl!("Alter Paths for Appearance"));
-    check(ui, d, "centerlineStrokes", tl!("Export Strokes as Centerlines (0 width)"));
     // Preserve Appearance always outlines type.
     let appearance = preserve == Preserve::Appearance;
     if widgets::check(ui, tl!("Outline Text"), appearance || d.bool("outlineText"), !appearance) {
@@ -121,13 +107,9 @@ fn body(app: &mut VectorcraftApp, ui: &mut egui::Ui, d: &mut Dialog) -> bool {
     ui.add_space(8.0);
     super::form::caption(
         ui,
-        if d.bool("centerlineStrokes") {
-            tl!("Stroked paths become one zero-width centerline; their fills are omitted.")
-        } else {
-            match preserve {
-                Preserve::Appearance => tl!("Type becomes outlines, and strokes a CAD line can't draw become filled shapes."),
-                Preserve::Editability => tl!("Type stays text, and every stroke is a line with its lineweight and dashes."),
-            }
+        match preserve {
+            Preserve::Appearance => tl!("Type becomes outlines, and strokes a CAD line can't draw become filled shapes."),
+            Preserve::Editability => tl!("Type stays text, and every stroke is a line with its lineweight and dashes."),
         },
     );
     false
diff --git a/crates/ui-egui/src/i18n/cs.tsv b/crates/ui-egui/src/i18n/cs.tsv
index 8300a8c9..ea273e44 100644
--- a/crates/ui-egui/src/i18n/cs.tsv
+++ b/crates/ui-egui/src/i18n/cs.tsv
@@ -1906,9 +1906,6 @@ lighting	Light	Světlo
 	Scale to Fit Artboard	Přizpůsobit pracovní ploše
 	Scaling	Měřítko
 	Alter Paths for Appearance	Upravit cesty podle vzhledu
-	3ds Max — R12 Linework	Čárový výkres R12 pro 3ds Max
-	Export Strokes as Centerlines (0 width)	Exportovat tahy jako osy (tloušťka 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Cesty s tahem se změní na jednu osu nulové tloušťky; jejich výplně se vynechají.
 	DXF Options	Možnosti DXF
 	Export Option	Možnost exportu
 	Export Selected Art Only	Exportovat jen vybranou kresbu
diff --git a/crates/ui-egui/src/i18n/de.tsv b/crates/ui-egui/src/i18n/de.tsv
index f076d495..eb44f723 100644
--- a/crates/ui-egui/src/i18n/de.tsv
+++ b/crates/ui-egui/src/i18n/de.tsv
@@ -147,9 +147,6 @@
 	Alt	Alt
 	Alt:	Alt-Text:
 	Alter Paths for Appearance	Pfade für das Aussehen anpassen
-	3ds Max — R12 Linework	3ds Max — R12-Linien
-	Export Strokes as Centerlines (0 width)	Konturen als Mittellinien exportieren (Breite 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Pfade mit Kontur werden zu einer Mittellinie der Breite 0; ihre Flächen entfallen.
 	Amount	Stärke
 	Amount:	Stärke:
 	Anchor Point	Ankerpunkt
diff --git a/crates/ui-egui/src/i18n/es.tsv b/crates/ui-egui/src/i18n/es.tsv
index c39a51df..24652912 100644
--- a/crates/ui-egui/src/i18n/es.tsv
+++ b/crates/ui-egui/src/i18n/es.tsv
@@ -165,9 +165,6 @@
 	Alt	Alt
 	Alt:	Alt:
 	Alter Paths for Appearance	Modificar trazados según la apariencia
-	3ds Max — R12 Linework	Trazado lineal R12 para 3ds Max
-	Export Strokes as Centerlines (0 width)	Exportar trazos como líneas centrales (grosor 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Los trazados con trazo se convierten en una línea central de grosor cero; se omiten sus rellenos.
 	Amount	Cantidad
 	Amount:	Cantidad:
 	Anchor Point	Punto de ancla
diff --git a/crates/ui-egui/src/i18n/fr.tsv b/crates/ui-egui/src/i18n/fr.tsv
index b8b7d045..22e4f564 100644
--- a/crates/ui-egui/src/i18n/fr.tsv
+++ b/crates/ui-egui/src/i18n/fr.tsv
@@ -166,9 +166,6 @@
 	Alt	Alt
 	Alt:	Alt :
 	Alter Paths for Appearance	Modifier les tracés selon l’aspect
-	3ds Max — R12 Linework	3ds Max — Tracé linéaire R12
-	Export Strokes as Centerlines (0 width)	Exporter les contours en lignes médianes (épaisseur 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Les tracés avec contour deviennent une ligne médiane d’épaisseur nulle ; leurs fonds sont omis.
 	Amount	Quantité
 	Amount:	Quantité :
 	Anchor Point	Point d’ancrage
diff --git a/crates/ui-egui/src/i18n/hu.tsv b/crates/ui-egui/src/i18n/hu.tsv
index 99e33129..6091a6c5 100644
--- a/crates/ui-egui/src/i18n/hu.tsv
+++ b/crates/ui-egui/src/i18n/hu.tsv
@@ -252,10 +252,6 @@
 	Alt+Drag	Alt+húzás
 	Alt:	Helyettesítő szöveg:
 	Alter Paths for Appearance	Útvonalak módosítása a megjelenés szerint
-	3ds Max — R12 Linework	3ds Max — R12 vonalrajz
-	Export Strokes as Centerlines (0 width)	Körvonalak exportálása középvonalként (0 vastagság)
-	Stroked paths become one zero-width centerline; their fills are omitted.	A körvonalas útvonalakból egyetlen 0 vastagságú középvonal lesz; a kitöltésük elmarad.
-	Ambient	Környezeti fény
 	Amount	Mérték
 	Amount:	Mérték:
 	Analogous	Analóg
diff --git a/crates/ui-egui/src/i18n/it.tsv b/crates/ui-egui/src/i18n/it.tsv
index 3a4aaba5..aa9764b8 100644
--- a/crates/ui-egui/src/i18n/it.tsv
+++ b/crates/ui-egui/src/i18n/it.tsv
@@ -165,9 +165,6 @@
 	Alt	Alt
 	Alt:	Alt:
 	Alter Paths for Appearance	Modifica tracciati in base all'aspetto
-	3ds Max — R12 Linework	3ds Max — Linee R12
-	Export Strokes as Centerlines (0 width)	Esporta tracce come linee d’asse (spessore 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	I tracciati con traccia diventano un’unica linea d’asse a spessore zero; i riempimenti vengono omessi.
 	Amount	Quantità
 	Amount:	Quantità:
 	Anchor Point	Punto di ancoraggio
diff --git a/crates/ui-egui/src/i18n/ja.tsv b/crates/ui-egui/src/i18n/ja.tsv
index 4008debf..e2d291dc 100644
--- a/crates/ui-egui/src/i18n/ja.tsv
+++ b/crates/ui-egui/src/i18n/ja.tsv
@@ -815,9 +815,6 @@
 	All the art	すべてのアート
 	Alt:	代替テキスト:
 	Alter Paths for Appearance	外観を保つためにパスを変更
-	3ds Max — R12 Linework	3ds Max — R12 線画
-	Export Strokes as Centerlines (0 width)	線を中心線として書き出し (幅 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	線のあるパスは幅 0 の中心線 1 本になり、塗りは省略されます。
 	Amount:	量:
 	Anchor Point	アンカーポイント
 	Anchor Point Tool	アンカーポイントツール
diff --git a/crates/ui-egui/src/i18n/ko.tsv b/crates/ui-egui/src/i18n/ko.tsv
index f5666315..a643ab3b 100644
--- a/crates/ui-egui/src/i18n/ko.tsv
+++ b/crates/ui-egui/src/i18n/ko.tsv
@@ -810,9 +810,6 @@
 	All the art	모든 아트워크
 	Alt:	Alt:
 	Alter Paths for Appearance	모양에 맞게 패스 변경
-	3ds Max — R12 Linework	3ds Max — R12 선 작업
-	Export Strokes as Centerlines (0 width)	선을 중심선으로 내보내기(두께 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	선이 있는 패스는 두께 0인 중심선 하나가 되며 칠은 생략됩니다.
 	Amount:	양:
 	Anchor Point	앵커 포인트
 	Anchor Point Tool	앵커 포인트 도구
diff --git a/crates/ui-egui/src/i18n/pl.tsv b/crates/ui-egui/src/i18n/pl.tsv
index df6ed6d9..57d42f66 100644
--- a/crates/ui-egui/src/i18n/pl.tsv
+++ b/crates/ui-egui/src/i18n/pl.tsv
@@ -1851,9 +1851,6 @@ lighting	Light	Światło
 	Scale to Fit Artboard	Skaluj, aby dopasować do obszaru kompozycji
 	Scaling	Skalowanie
 	Alter Paths for Appearance	Zmień ścieżki dla zachowania wyglądu
-	3ds Max — R12 Linework	3ds Max — linie R12
-	Export Strokes as Centerlines (0 width)	Eksportuj obrysy jako linie środkowe (szerokość 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Ścieżki z obrysem stają się jedną linią środkową o zerowej szerokości; ich wypełnienia są pomijane.
 	DXF Options	Opcje DXF
 	Export Option	Opcja eksportu
 	Export Selected Art Only	Eksportuj tylko zaznaczoną kompozycję
diff --git a/crates/ui-egui/src/i18n/pt-br.tsv b/crates/ui-egui/src/i18n/pt-br.tsv
index 68fc8948..75a81dca 100644
--- a/crates/ui-egui/src/i18n/pt-br.tsv
+++ b/crates/ui-egui/src/i18n/pt-br.tsv
@@ -175,7 +175,6 @@
 	All the art	Toda a arte
 	Alt:	Alt:
 	Alter Paths for Appearance	Alterar Caminhos para Aparência
-	3ds Max — R12 Linework	Traçado em linhas R12 para 3ds Max
 	Amount:	Quantidade:
 	Anchor Point	Ponto de Ancoragem
 	Anchor Point Tool	Ferramenta Ponto de Ancoragem
diff --git a/crates/ui-egui/src/i18n/ru.tsv b/crates/ui-egui/src/i18n/ru.tsv
index f7f03369..d6e0c979 100644
--- a/crates/ui-egui/src/i18n/ru.tsv
+++ b/crates/ui-egui/src/i18n/ru.tsv
@@ -163,9 +163,6 @@
 	Alt	Alt
 	Alt:	Alt:
 	Alter Paths for Appearance	Изменять контуры для оформления
-	3ds Max — R12 Linework	3ds Max — линии R12
-	Export Strokes as Centerlines (0 width)	Экспортировать обводки как осевые линии (толщина 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Контуры с обводкой становятся одной осевой линией нулевой толщины; заливки опускаются.
 	Amount	Количество
 	Amount:	Количество:
 	Anchor Point	Опорная точка
diff --git a/crates/ui-egui/src/i18n/uk.tsv b/crates/ui-egui/src/i18n/uk.tsv
index 897684de..bc74406e 100644
--- a/crates/ui-egui/src/i18n/uk.tsv
+++ b/crates/ui-egui/src/i18n/uk.tsv
@@ -159,9 +159,6 @@
 	Alt	Alt
 	Alt:	Alt:
 	Alter Paths for Appearance	Змінювати контури для оформлення
-	3ds Max — R12 Linework	3ds Max — лінії R12
-	Export Strokes as Centerlines (0 width)	Експортувати обведення як осьові лінії (товщина 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Контури з обведенням стають однією осьовою лінією нульової товщини; заливки пропускаються.
 	Amount	Кількість
 	Amount:	Кількість:
 	Anchor Point	Опорна точка
diff --git a/crates/ui-egui/src/i18n/vi.tsv b/crates/ui-egui/src/i18n/vi.tsv
index 98542231..5792d956 100644
--- a/crates/ui-egui/src/i18n/vi.tsv
+++ b/crates/ui-egui/src/i18n/vi.tsv
@@ -191,10 +191,6 @@
 	Alt	Alt
 	Alt:	Alt:
 	Alter Paths for Appearance	Sửa đường dẫn cho diện mạo
-	3ds Max — R12 Linework	3ds Max — đường nét R12
-	Export Strokes as Centerlines (0 width)	Xuất nét thành đường tâm (độ rộng 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	Các đường có nét trở thành một đường tâm có độ rộng 0; phần tô của chúng bị bỏ qua.
-	Ambient	Ánh sáng môi trường
 	Amount	Mức độ
 	Amount:	Mức độ:
 	Anchor Point	Điểm neo
diff --git a/crates/ui-egui/src/i18n/zh-hans.tsv b/crates/ui-egui/src/i18n/zh-hans.tsv
index cdb84dff..105f571b 100644
--- a/crates/ui-egui/src/i18n/zh-hans.tsv
+++ b/crates/ui-egui/src/i18n/zh-hans.tsv
@@ -125,9 +125,6 @@
 	Alt	Alt
 	Alt:	Alt：
 	Alter Paths for Appearance	为外观改变路径
-	3ds Max — R12 Linework	3ds Max — R12 线稿
-	Export Strokes as Centerlines (0 width)	将描边导出为中心线（宽度 0）
-	Stroked paths become one zero-width centerline; their fills are omitted.	带描边的路径变为一条宽度为零的中心线；其填色将被省略。
 	Amount	数量
 	Amount:	数量：
 	Anchor Point	锚点
diff --git a/crates/ui-egui/src/i18n/zh-hant.tsv b/crates/ui-egui/src/i18n/zh-hant.tsv
index d880b61a..58ae4073 100644
--- a/crates/ui-egui/src/i18n/zh-hant.tsv
+++ b/crates/ui-egui/src/i18n/zh-hant.tsv
@@ -134,9 +134,6 @@
 	Alt	Alt
 	Alt:	Alt：
 	Alter Paths for Appearance	依外觀調整路徑
-	3ds Max — R12 Linework	3ds Max — R12 線稿
-	Export Strokes as Centerlines (0 width)	將筆畫轉存為中心線 (寬度 0)
-	Stroked paths become one zero-width centerline; their fills are omitted.	具有筆畫的路徑會變成一條寬度為零的中心線；其填色不會保留。
 	Amount	數量
 	Amount:	數量：
 	Anchor Point	錨點
diff --git a/docs/mcp.md b/docs/mcp.md
index ccebe560..9e67ca42 100644
--- a/docs/mcp.md
+++ b/docs/mcp.md
@@ -2277,14 +2277,6 @@ selected objects in their layers (every export takes it), and `useArtboards: tru
 artboard holding the art over it. What DXF can't hold (gradients and patterns as one colour, blending, opacity masks,
 raster effects, clipping) comes back in `warnings`.
 
-`centerlineStrokes: true` writes each stroked path once, as a zero-width centerline (its fill and stroke outline
-are left out): the linework 3D and CAM software extrude or sweep along, instead of the outline of the stroke's
-width. For linework intended for 3ds Max, Export As → DXF has a **3ds Max — R12 Linework** preset: millimetres, R12
-polylines (curves are flattened), editable strokes as centerlines, 256 colours and outlined text, the version older
-CAD importers read most reliably. Review the export warnings: R12 drops images and fill interiors. Through
-`document.exportDxf` the preset is `version: "R12"`, `unit: "mm"`, `preserve: "editability"`,
-`centerlineStrokes: true`, `colors: 256` and `outlineText: true`.
-
 DWG can't be written (no openly licensed writer exists): `document.formats` lists it under `unsupported` with that
 hint, and exporting to it answers with the hint to export DXF. PICT files are not supported either and say so when
 opened.