Image Trace: Ignore Color, and the Auto Color and Outline presets

Against the documented panel (https://helpx.adobe.com/illustrator/desktop/manage-objects/traces-mockups-symbols/image-trace-panel-options.html): - Ignore Color: "Ignores a specific color while tracing. Use the color picker to selectively ignore a color." The panel's Ignore White is now Ignore Color with a colour button beside it (white until another colour is picked); `imageTrace.make` takes `ignoreColor: "#rrggbb"` beside `ignoreWhite`, and leaves out the palette colours within about 30 levels of it. Documents saved before have no such setting and ignore white as they did. Flat Logo mode leaves out white only. - Auto Color ("Creates a posterized image from a photo or artwork"): Color mode with the Automatic palette. - Outline ("Simplifies the image to black outlines"): Black and White with Create: Strokes and no fills. - The Outline preset's name is translated as a preset's name, not as the Outline view's. Measured (docs/image-trace-quality.md): Auto Color on flat art is 0.140 px off on average with 4.0 paths (16 Colors: 0.141, 4.2). Outline on the line inputs, the first measure of Create: Strokes: 0.310 px off on average, 1.84 at worst, 81 anchors for 5 lines (Line Art's filled outlines: 0.055, 0.96, 46).
Merge pull request #1563 from storytold/u/trace-thin
2026-10-13 08:04:32 +07:00 · 2026-10-13 07:50:58 +07:00
23 changed files with 225 additions and 62 deletions
@@ -120,7 +120,7 @@ pub fn specs() -> Vec<CommandSpec> {
            "Make",
            ["Object", "Image Trace"],
            None,
-            "{id?: image or Image Trace group (default: selection), preset?: name (imageTrace.presets), params?: {mode: \"blackAndWhite\"|\"grayscale\"|\"color\"|\"logo\", threshold: 0-255, palette: \"limited\"|\"fullTone\"|\"automatic\"|\"documentLibrary\" (color mode; limited: the `colors` best colours, fullTone: as many as the tones need, more with colorDetail, automatic: flat art with its own colours, else fullTone, documentLibrary: at most `colors` of the library's colours, as they are), colors: 2-256, colorDetail: 0-100 (fullTone, automatic), library: \"document\" (the document's swatches) or a swatch library id or name (swatch.library.list; documentLibrary), paths: 0-100, corners: 0-100, noise: px, method: \"abutting\"|\"overlapping\", ignoreWhite, snapCurvesToLines, fills: true, strokes: false (Create: lines up to strokeWidth wide become stroked centre lines; without fills, wider areas become stroked outlines), strokeWidth: px (10), logoColors?: [\"#rrggbb\"…] (mode logo: flat-colour logos only; colours found automatically or named here, white is always its own colour, at most ten; noise = areas under noise/10 px ignored; edges to a fraction of a pixel, sharp corners restored, lines and circles snapped; enclosed transparent areas are painted white unless ignoreWhite makes them holes; fills/strokes are ignored; gradients and photos are refused)}, view?: as imageTrace.setView (default: the traced object's own, else tracingResult), ids?: [id…] (instead of id)} → {id, paths, anchors, colors}",
+            "{id?: image or Image Trace group (default: selection), preset?: name (imageTrace.presets), params?: {mode: \"blackAndWhite\"|\"grayscale\"|\"color\"|\"logo\", threshold: 0-255, palette: \"limited\"|\"fullTone\"|\"automatic\"|\"documentLibrary\" (color mode; limited: the `colors` best colours, fullTone: as many as the tones need, more with colorDetail, automatic: flat art with its own colours, else fullTone, documentLibrary: at most `colors` of the library's colours, as they are), colors: 2-256, colorDetail: 0-100 (fullTone, automatic), library: \"document\" (the document's swatches) or a swatch library id or name (swatch.library.list; documentLibrary), paths: 0-100, corners: 0-100, noise: px, method: \"abutting\"|\"overlapping\", ignoreWhite (leave out white areas), ignoreColor?: \"#rrggbb\" (with ignoreWhite: the colour left out instead of white), snapCurvesToLines, fills: true, strokes: false (Create: lines up to strokeWidth wide become stroked centre lines; without fills, wider areas become stroked outlines), strokeWidth: px (10), logoColors?: [\"#rrggbb\"…] (mode logo: flat-colour logos only; colours found automatically or named here, white is always its own colour, at most ten; noise = areas under noise/10 px ignored; edges to a fraction of a pixel, sharp corners restored, lines and circles snapped; enclosed transparent areas are painted white unless ignoreWhite makes them holes; fills/strokes are ignored; gradients and photos are refused)}, view?: as imageTrace.setView (default: the traced object's own, else tracingResult), ids?: [id…] (instead of id)} → {id, paths, anchors, colors}",
            has_selection_or_ids,
            |s, p| trace_make(s, p, false)
        ),
@@ -795,7 +795,8 @@ fn image_trace_presets_query_and_errors() {
    let mut s = session();
    let r = s.execute("imageTrace.presets", &json!({})).unwrap();
    let names: Vec<&str> = r["presets"].as_array().unwrap().iter().map(|p| p["name"].as_str().unwrap()).collect();
-    assert_eq!(names.len(), 13);
+    assert_eq!(names.len(), 15);
+    assert!(names.contains(&"Auto Color") && names.contains(&"Outline"));
    assert!(names.contains(&"Technical Drawing") && names.contains(&"Shades of Gray") && names.contains(&"Flat Logo"));
    let a = rect(&mut s, 0.0, 0.0, 10.0, 10.0);
    assert!(s.execute("imageTrace.make", &json!({"id": a.0})).is_err(), "not an image");
@@ -269,8 +269,12 @@ pub struct TraceParams {
    /// `noise / 10` pixels of the source image.)
    pub noise: u32,
    pub method: Method,
-    /// Drop white areas (no white background shape).
+    /// Ignore Color: drop the areas of one colour (no background shape): white, unless
+    /// `ignore_color` names another.
    pub ignore_white: bool,
+    /// The colour Ignore Color leaves out (`#rrggbb`): the palette colours within about 30 levels
+    /// of it. `None` is white. (Flat Logo mode leaves out white only.)
+    pub ignore_color: Option<String>,
    /// Replace nearly-straight curves with straight lines. In Logo mode this also snaps tight arcs
    /// to true circles.
    pub snap_curves_to_lines: bool,
@@ -302,6 +306,7 @@ impl Default for TraceParams {
            noise: 25,
            method: Method::Abutting,
            ignore_white: false,
+            ignore_color: None,
            snap_curves_to_lines: false,
            fills: true,
            strokes: false,
@@ -353,6 +358,7 @@ impl TraceParams {
 /// Built-in preset names in panel order (our own parameter sets).
 pub const PRESET_NAMES: &[&str] = &[
    "Default",
+    "Auto Color",
    "High Fidelity Photo",
    "Low Fidelity Photo",
    "3 Colors",
@@ -364,6 +370,7 @@ pub const PRESET_NAMES: &[&str] = &[
    "Silhouettes",
    "Line Art",
    "Technical Drawing",
+    "Outline",
    "Flat Logo",
 ];

@@ -392,6 +399,10 @@ pub fn preset(name: &str) -> Option<TraceParams> {
    };
    Some(match key.as_str() {
        "default" => d,
+        // A posterised image of a photo or of artwork: its own colours where it is flat art, as
+        // many as its tones need where it is not.
+        // (Color detail 85: a colour on a hundredth of the picture is still one of its colours.)
+        "auto color" => TraceParams { palette: Palette::Automatic, color_detail: 85.0, ..color(6, 65.0, 60.0, 16, Method::Abutting) },
        "high fidelity photo" => color(64, 90.0, 25.0, 4, Method::Overlapping),
        "low fidelity photo" => color(20, 60.0, 50.0, 12, Method::Overlapping),
        "3 colors" => color(3, 60.0, 60.0, 20, Method::Abutting),
@@ -403,6 +414,8 @@ pub fn preset(name: &str) -> Option<TraceParams> {
        "silhouettes" => bw(200, 40.0, 60.0, 30, false),
        "line art" => bw(128, 80.0, 70.0, 10, false),
        "technical drawing" => bw(128, 95.0, 90.0, 4, true),
+        // Black outlines: lines as stroked centre lines, wider areas as stroked outlines.
+        "outline" => TraceParams { fills: false, strokes: true, ..bw(128, 80.0, 70.0, 10, false) },
        // Flat-colour logos: colours found automatically, edges placed to a fraction of a pixel.
        "flat logo" => TraceParams { mode: Mode::Logo, colors: 8, paths: 60.0, corners: 50.0, noise: 6, snap_curves_to_lines: true, ..d },
        _ => return None,
@@ -446,6 +459,14 @@ fn is_white(c: [u8; 3]) -> bool {
    c.iter().all(|&v| v >= 245)
 }

+/// Whether Ignore Color leaves palette colour `c` out: `target` is the colour picked (`None`: white).
+fn is_ignored(c: [u8; 3], target: Option<[u8; 3]>) -> bool {
+    match target {
+        None => is_white(c),
+        Some(t) => (0..3).map(|k| (f64::from(c[k]) - f64::from(t[k])).powi(2)).sum::<f64>() <= 30.0 * 30.0 || (is_white(t) && is_white(c)),
+    }
+}
+
 /// Trace `img` with `params`. Failures (an image Logo mode refuses, say) give an empty result: use
 /// [`trace_within`] to see why.
 pub fn trace(img: &Raster, params: &TraceParams) -> TraceResult {
@@ -464,6 +485,11 @@ pub fn trace_within(img: &Raster, params: &TraceParams, max_anchors: usize) -> R
    if params.mode == Mode::Logo {
        return logo::trace_logo(img, params, max_anchors);
    }
+    // The colour Ignore Color leaves out, if not white.
+    let ignore = match &params.ignore_color {
+        Some(name) if params.ignore_white => Some(logo::parse_hex(name).ok_or_else(|| TraceError::BadPalette(name.clone()))?),
+        _ => None,
+    };
    // A photo is traced from a copy with its noise smoothed away (see `smooth`).
    let smoothed = (params.mode != Mode::BlackAndWhite && quantize::continuous_tone(img)).then(|| smooth::smoothed(img));
    let img = smoothed.as_ref().unwrap_or(img);
@@ -500,12 +526,13 @@ pub fn trace_within(img: &Raster, params: &TraceParams, max_anchors: usize) -> R
        rank[i] = r;
    }
    let layers: Vec<(usize, usize)> =
-        order.iter().copied().enumerate().filter(|&(_, ci)| !(params.ignore_white && is_white(q.palette[ci]))).collect();
+        order.iter().copied().enumerate().filter(|&(_, ci)| !(params.ignore_white && is_ignored(q.palette[ci], ignore))).collect();
    let job = Layers {
        q: &q,
        rank: &rank,
        params,
        img,
+        ignore,
        boxes,
        bw_tones: bw_tones(img, &q),
        style: params.outline_style(),
@@ -571,6 +598,8 @@ struct Layers<'a> {
    rank: &'a [usize],
    params: &'a TraceParams,
    img: &'a Raster,
+    /// The colour Ignore Color leaves out, if not white.
+    ignore: Option<[u8; 3]>,
    /// The box each palette entry's pixels lie in: `(x0, y0, x1, y1)`, the far sides excluded.
    boxes: Vec<Option<(usize, usize, usize, usize)>>,
    /// Black and White: the luminance of white and of black (see `bw_tones`).
@@ -590,7 +619,7 @@ impl Layers<'_> {
    /// Ignore White: white is no part of any layer (stacked layers reach under the layers above
    /// them, and must not reach under white that is left out).
    fn ignored(&self, label: u16) -> bool {
-        self.params.ignore_white && self.q.palette.get(label as usize).is_some_and(|c| is_white(*c))
+        self.params.ignore_white && self.q.palette.get(label as usize).is_some_and(|c| is_ignored(*c, self.ignore))
    }
    /// The region across a crack, for cutting outlines at their junctions: the outside pixel's
    /// colour. Stacked layers end on many colours at once and share no edge: one neighbour.
@@ -26,5 +26,6 @@ mod unmix;

 pub(crate) use geom::{Cubic, all_within, resample_closed, resample_open, sample_cubics};
 pub(crate) use outline::{Stats, Style, fit_open, fit_outline};
+pub(crate) use palette::parse_hex;
 pub(crate) use pipeline::trace_logo;
 pub(crate) use restore::RestoreParams;
@@ -255,7 +255,7 @@ fn snap_curves_to_lines_straightens_near_lines() {

 #[test]
 fn presets_resolve() {
-    assert_eq!(presets().len(), 13);
+    assert_eq!(presets().len(), 15);
    for n in PRESET_NAMES {
        assert!(preset(n).is_some(), "{n}");
    }
@@ -1072,3 +1072,24 @@ fn a_blurred_thin_line_on_unevenly_lit_paper_is_a_few_anchors() {
    let off = along(path).iter().filter(|p| p.x > 14.0 && p.x < 146.0).map(|p| ((p.y - (17.3 + 0.06 * p.x)).abs() - 1.0).abs()).fold(0.0, f64::max);
    assert!(off < 0.5, "edges {off} px from where the ink's width puts them");
 }
+
+#[test]
+fn ignore_color_leaves_out_the_colour_picked() {
+    // Navy field, yellow disc, green bar.
+    let img = three_colour_art(0.0);
+    let params = TraceParams { colors: 3, ignore_white: true, ..sixteen_colors() };
+    // White by default: nothing here is white.
+    assert_eq!(trace(&img, &params).paths.len(), 3);
+    // The navy picked a little off: the field goes, the disc and the bar stay.
+    let res = trace(&img, &TraceParams { ignore_color: Some("#18263c".replace("3c", "5e")), ..params.clone() });
+    assert_eq!(res.paths.len(), 2);
+    assert!(res.paths.iter().all(|p| p.color != [20, 40, 90]));
+    // Not ticked, the colour is not left out; and a colour that is none is refused.
+    assert_eq!(trace(&img, &TraceParams { ignore_white: false, ignore_color: Some("#14285a".into()), ..params.clone() }).paths.len(), 3);
+    let bad = trace_within(&img, &TraceParams { ignore_color: Some("navy".into()), ..params.clone() }, usize::MAX);
+    assert!(matches!(bad, Err(TraceError::BadPalette(_))));
+    // Old documents have no such setting: white.
+    let old: TraceParams = serde_json::from_str(r#"{"mode":"color","ignoreWhite":true}"#).unwrap();
+    assert_eq!(old.ignore_color, None);
+    assert_eq!(serde_json::to_value(&params).unwrap()["ignoreColor"], serde_json::Value::Null);
+}
@@ -68,10 +68,10 @@ fn target(preset: &str, input: &Input) -> bool {
        "High Fidelity Photo" | "Low Fidelity Photo" | "Shades of Gray" => &[Class::Tone],
        // Three colours cannot show the badge's five.
        "3 Colors" => return input.name == "two touching halves",
-        "6 Colors" | "16 Colors" | "Flat Logo" => &[Class::Flat],
+        "6 Colors" | "16 Colors" | "Flat Logo" | "Auto Color" => &[Class::Flat],
        "Sketched Art" => &[Class::Shape, Class::Lines],
        "Silhouettes" => &[Class::Shape],
-        "Line Art" => &[Class::Lines],
+        "Line Art" | "Outline" => &[Class::Lines],
        "Technical Drawing" => &[Class::Lines, Class::Poly],
        _ => &[Class::Shape, Class::Poly],
    };
@@ -621,6 +621,7 @@
 	VectorCraft on GitHub	VectorCraft na GitHubu
 	Search Commands…	Hledat příkazy…
 	VectorCraft Help…	Nápověda VectorCraft…
+	Auto Color	Automatická barva
 	Automatic	Automaticky
 	Isolate Selected Group	Izolovat vybranou skupinu
 	Exit Isolation Mode	Ukončit izolovaný režim
@@ -1424,6 +1425,7 @@ lighting	Light	Světlo
 	Abutting	Sousedící
 	Black and White	Černobílé
 	Corners	Rohy
+	Ignore Color	Ignorovat barvu
 	Ignore White	Ignorovat bílou
 	Palette:	Paleta:
 	Limited	Omezená
@@ -3660,6 +3662,7 @@ effect	Regular	Pravidelný
 	Stroke Pressure	Tlak tahu

 # Plurals: one|few|other
+imageTrace	Outline	Obrys
@plural	{n} item|{n} items	{n} položka|{n} položky|{n} položek
@plural	Color Table ({n} color)|Color Table ({n} colors)	Tabulka barev ({n} barva)|Tabulka barev ({n} barvy)|Tabulka barev ({n} barev)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Odstranit {n} grafický styl?|Odstranit {n} grafické styly?|Odstranit {n} grafických stylů?
@@ -229,6 +229,7 @@
 	Author Title:	Titel des Autors:
 	Author:	Autor:
 	Auto	Auto
+	Auto Color	Automatische Farbe
 	Automatic	Automatisch
 	Auto Size New Area Type	Größe von neuem Flächentext automatisch anpassen
 	Auto Spell Check	Automatische Rechtschreibprüfung
@@ -1226,6 +1227,7 @@
 	Identify Objects By	Objekte identifizieren nach
 	Ignore	Ignorieren
 	Ignore Artboards (all the art as one page)	Zeichenflächen ignorieren (gesamte Grafik als eine Seite)
+	Ignore Color	Farbe ignorieren
 	Ignore White	Weiß ignorieren
 	Palette:	Palette:
 	Limited	Begrenzt
@@ -3135,6 +3137,7 @@ effect	Points	Punkte
 	{warning}: click to correct to the closest color ({hex})	{warning}: Klicken korrigiert auf die nächstliegende Farbe ({hex})
 	“{file}” is protected by a password.	„{file}“ ist durch ein Kennwort geschützt.
 	● Recording	● Aufzeichnung
+imageTrace	Outline	Kontur
@plural	{n} item|{n} items	{n} Element|{n} Elemente
@plural	Color Table ({n} color)|Color Table ({n} colors)	Farbtabelle ({n} Farbe)|Farbtabelle ({n} Farben)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Diesen {n} Grafikstil löschen?|Diese {n} Grafikstile löschen?
@@ -247,6 +247,7 @@
 	Author Title:	Cargo del autor:
 	Author:	Autor:
 	Auto	Auto
+	Auto Color	Color automático
 	Automatic	Automático
 	Auto Size New Area Type	Ajustar automáticamente el tamaño del nuevo texto de área
 	Auto Spell Check	Revisión ortográfica automática
@@ -1244,6 +1245,7 @@
 	Identify Objects By	Identificar objetos por
 	Ignore	Ignorar
 	Ignore Artboards (all the art as one page)	Ignorar mesas de trabajo (toda la ilustración como una página)
+	Ignore Color	Ignorar color
 	Ignore White	Ignorar blanco
 	Palette:	Paleta:
 	Limited	Limitada
@@ -3236,6 +3238,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}: clic para corregir al color más cercano ({hex})
 	“{file}” is protected by a password.	“{file}” está protegido con contraseña.
 	● Recording	● Grabando
+imageTrace	Outline	Contorno
@plural	{n} item|{n} items	{n} elemento|{n} elementos
@plural	Color Table ({n} color)|Color Table ({n} colors)	Tabla de colores ({n} color)|Tabla de colores ({n} colores)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	¿Eliminar {n} estilo gráfico?|¿Eliminar estos {n} estilos gráficos?
@@ -248,6 +248,7 @@
 	Author Title:	Fonction de l’auteur :
 	Author:	Auteur :
 	Auto	Auto
+	Auto Color	Couleur automatique
 	Automatic	Automatique
 	Auto Size New Area Type	Taille automatique du nouveau texte captif
 	Auto Spell Check	Vérification orthographique automatique
@@ -1243,6 +1244,7 @@
 	Identify Objects By	Identifier les objets par
 	Ignore	Ignorer
 	Ignore Artboards (all the art as one page)	Ignorer les plans de travail (toute l’illustration sur une page)
+	Ignore Color	Ignorer la couleur
 	Ignore White	Ignorer le blanc
 	Palette:	Palette :
 	Limited	Limitée
@@ -3233,6 +3235,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning} : cliquez pour corriger avec la couleur la plus proche ({hex})
 	“{file}” is protected by a password.	« {file} » est protégé par un mot de passe.
 	● Recording	● Enregistrement
+imageTrace	Outline	Contour
@plural	{n} item|{n} items	{n} élément|{n} éléments
@plural	Color Table ({n} color)|Color Table ({n} colors)	Table des couleurs ({n} couleur)|Table des couleurs ({n} couleurs)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Supprimer {n} style graphique ?|Supprimer ces {n} styles graphiques ?
@@ -360,6 +360,7 @@
 	Auto Spell Check	Automatikus helyesírás-ellenőrzés
 	Auto-Collapse Iconic Panels	Ikonpanelek automatikus becsukása
 	Auto-Rotate (turn the paper to each artboard)	Automatikus elforgatás (a papír igazodik minden rajztáblához)
+	Auto Color	Automatikus szín
 	Automatic	Automatikus
 	Automatic flatness	Automatikus simaság
 	Automatically	Automatikusan
@@ -1608,6 +1609,7 @@
 	Identify Objects By	Objektumok azonosítása
 	Ignore	Kihagy
 	Ignore Artboards (all the art as one page)	Rajztáblák figyelmen kívül hagyása (az összes grafika egy oldalon)
+	Ignore Color	Szín figyelmen kívül hagyása
 	Ignore White	Fehér figyelmen kívül hagyása
 	Image	Kép
 	Image Info	Kép adatai
@@ -3935,6 +3937,7 @@ lighting	Light	Fény
 theme	Appearance	Kinézet

 # Plurals: one|other
+imageTrace	Outline	Körvonal
@plural	Color Table ({n} color)|Color Table ({n} colors)	Színtábla ({n} szín)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	{n} grafikai stílus törlése?
@plural	{n} area highlighted|{n} areas highlighted	Kiemelt terület: {n}
@@ -247,6 +247,7 @@
 	Author Title:	Qualifica dell'autore:
 	Author:	Autore:
 	Auto	Auto
+	Auto Color	Colore automatico
 	Automatic	Automatico
 	Auto Size New Area Type	Dimensionamento automatico del nuovo testo in area
 	Auto Spell Check	Controllo ortografico automatico
@@ -1243,6 +1244,7 @@
 	Identify Objects By	Identifica oggetti per
 	Ignore	Ignora
 	Ignore Artboards (all the art as one page)	Ignora tavole da disegno (tutta la grafica come una sola pagina)
+	Ignore Color	Ignora colore
 	Ignore White	Ignora bianco
 	Palette:	Palette:
 	Limited	Limitata
@@ -3236,6 +3238,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}: fai clic per correggere con il colore più vicino ({hex})
 	“{file}” is protected by a password.	“{file}” è protetto da password.
 	● Recording	● Registrazione in corso
+imageTrace	Outline	Contorno
@plural	{n} item|{n} items	{n} elemento|{n} elementi
@plural	Color Table ({n} color)|Color Table ({n} colors)	Tabella colori ({n} colore)|Tabella colori ({n} colori)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Eliminare {n} stile grafico?|Eliminare questi {n} stili grafici?
@@ -666,6 +666,7 @@
 	Hide Print Tiling	プリント分割を隠す
 	Unlock Grid	グリッドをロック解除
 	Edit Envelope	エンベロープを編集
+	Auto Color	自動カラー
 	Automatic	自動
 	Isolate Selected Group	選択したグループを分離
 	Exit Isolation Mode	分離モードを終了
@@ -1481,6 +1482,7 @@
 	Identify Objects By	オブジェクトの識別方法
 	Ignore	無視
 	Ignore Artboards (all the art as one page)	アートボードを無視 (すべてのアートを 1 ページとして扱う)
+	Ignore Color	カラーを無視
 	Ignore White	白を無視
 	Palette:	パレット:
 	Limited	限定
@@ -3225,6 +3227,7 @@
 	Yellow	イエロー
 	[Normal Character Style]	[標準文字スタイル]
 	[Normal Paragraph Style]	[標準段落スタイル]
+imageTrace	Outline	アウトライン
@plural	Color Table ({n} color)|Color Table ({n} colors)	カラーテーブル ({n} 色)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	{n} 個のグラフィックスタイルを削除しますか？
@plural	{n} Layer|{n} Layers	{n} レイヤー
@@ -664,6 +664,7 @@
 	Hide Print Tiling	인쇄 타일링 숨기기
 	Unlock Grid	격자 잠금 해제
 	Edit Envelope	엔벨로프 편집
+	Auto Color	자동 색상
 	Automatic	자동
 	Isolate Selected Group	선택한 그룹 격리
 	Exit Isolation Mode	격리 모드 종료
@@ -1476,6 +1477,7 @@
 	Identify Objects By	개체 식별 기준
 	Ignore	무시
 	Ignore Artboards (all the art as one page)	아트보드 무시 (모든 아트웍을 한 페이지로)
+	Ignore Color	색상 무시
 	Ignore White	흰색 무시
 	Palette:	팔레트:
 	Limited	제한
@@ -3218,6 +3220,7 @@
 	Yellow	노랑
 	[Normal Character Style]	[기본 문자 스타일]
 	[Normal Paragraph Style]	[기본 단락 스타일]
+imageTrace	Outline	윤곽선
@plural	Color Table ({n} color)|Color Table ({n} colors)	색상 표 ({n}색)|색상 표 ({n}색)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	그래픽 스타일 {n}개를 삭제하시겠습니까?|그래픽 스타일 {n}개를 삭제하시겠습니까?
@plural	{n} Layer|{n} Layers	레이어 {n}개|레이어 {n}개
@@ -606,6 +606,7 @@
 	VectorCraft on GitHub	VectorCraft w serwisie GitHub
 	Search Commands…	Szukaj poleceń…
 	VectorCraft Help…	Pomoc VectorCraft…
+	Auto Color	Kolor automatyczny
 	Automatic	Automatycznie
 	Isolate Selected Group	Izoluj zaznaczoną grupę
 	Exit Isolation Mode	Wyjdź z trybu izolacji
@@ -1374,6 +1375,7 @@ lighting	Light	Światło
 	Abutting	Stykające się
 	Black and White	Czarno-biały
 	Corners	Narożniki
+	Ignore Color	Ignoruj kolor
 	Ignore White	Ignoruj biel
 	Palette:	Paleta:
 	Limited	Ograniczona
@@ -3528,6 +3530,7 @@ effect	Regular	Normalny
 	Stroke Direction	Kierunek pociągnięć
 	Stroke Width	Szerokość pociągnięć
 	Stroke Pressure	Nacisk pociągnięć
+imageTrace	Outline	Kontur
@plural	{n} item|{n} items	{n} element|{n} elementy|{n} elementów
@plural	Color Table ({n} color)|Color Table ({n} colors)	Tablica kolorów ({n} kolor)|Tablica kolorów ({n} kolory)|Tablica kolorów ({n} kolorów)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Usunąć {n} styl graficzny?|Usunąć {n} style graficzne?|Usunąć {n} stylów graficznych?
@@ -1070,7 +1070,7 @@
 	Identify Objects By	Identificar Objetos Por
 	Ignore	Ignorar
 	Ignore Artboards (all the art as one page)	Ignorar Mesas de Trabalho (toda a arte como uma página)
-	Ignore White	Ignorar Branco
+	Ignore Color	Ignorar Cor
 	Image Info	Informações da Imagem
 	Image Map:	Mapa da Imagem:
 	Image Size	Tamanho da Imagem
@@ -2661,6 +2661,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}: clique para corrigir para a cor mais próxima ({hex})
 	“{file}” is protected by a password.	“{file}” é protegido por uma senha.
 	● Recording	● Gravando
+imageTrace	Outline	Contorno
@plural	{n} item|{n} items	{n} item|{n} itens
@plural	Color Table ({n} color)|Color Table ({n} colors)	Tabela de Cores ({n} cor)|Tabela de Cores ({n} cores)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Excluir este {n} estilo gráfico?|Excluir estes {n} estilos gráficos?
@@ -245,6 +245,7 @@
 	Author Title:	Должность автора:
 	Author:	Автор:
 	Auto	Авто
+	Auto Color	Автоцвет
 	Automatic	Автоматически
 	Auto Size New Area Type	Автоматически подгонять размер нового текста в области
 	Auto Spell Check	Автоматическая проверка орфографии
@@ -1241,6 +1242,7 @@
 	Identify Objects By	Определять объекты по
 	Ignore	Игнорировать
 	Ignore Artboards (all the art as one page)	Игнорировать монтажные области (весь рисунок как одна страница)
+	Ignore Color	Игнорировать цвет
 	Ignore White	Игнорировать белый
 	Palette:	Палитра:
 	Limited	Ограниченная
@@ -3232,6 +3234,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}: щёлкните для исправления на ближайший цвет ({hex})
 	“{file}” is protected by a password.	«{file}» защищён паролем.
 	● Recording	● Запись
+imageTrace	Outline	Контур
@plural	{n} item|{n} items	{n} элемент|{n} элемента|{n} элементов
@plural	Color Table ({n} color)|Color Table ({n} colors)	Цветовая таблица ({n} цвет)|Цветовая таблица ({n} цвета)|Цветовая таблица ({n} цветов)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Удалить этот графический стиль ({n})?|Удалить эти графические стили ({n})?|Удалить эти графические стили ({n})?
@@ -241,6 +241,7 @@
 	Author Title:	Посада автора:
 	Author:	Автор:
 	Auto	Авто
+	Auto Color	Автоколір
 	Automatic	Автоматично
 	Auto Size New Area Type	Автоматично підганяти розмір нового тексту в області
 	Auto Spell Check	Автоматична перевірка орфографії
@@ -1237,6 +1238,7 @@
 	Identify Objects By	Визначати об’єкти по
 	Ignore	Ігнорувати
 	Ignore Artboards (all the art as one page)	Ігнорувати монтажні області (весь малюнок як одна сторінка)
+	Ignore Color	Ігнорувати колір
 	Ignore White	Ігнорувати білий
 	Palette:	Палітра:
 	Limited	Обмежена
@@ -3229,6 +3231,7 @@ effect	Points	Точки
 	{warning}: click to correct to the closest color ({hex})	{warning}: натисніть , щоб виправити найближчий колір ({hex})
 	“{file}” is protected by a password.	"{file}" захищений паролем.
 	● Recording	● Запис
+imageTrace	Outline	Контур
@plural	{n} item|{n} items	{n} елемент|{n} елементи|{n} елементів
@plural	Color Table ({n} color)|Color Table ({n} colors)	Таблиця кольорів ({n} колір)|Таблиця кольорів ({n} кольори)|Таблиця кольорів ({n} кольорів)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Видалити цей графічний стиль ({n})?|Видалити ці графічні стилі ({n})?|Видалити ці графічні стилі ({n})?
@@ -288,6 +288,7 @@
 	Auto Spell Check	Kiểm tra chính tả tự động
 	Auto-Collapse Iconic Panels	Tự động thu gọn bảng dạng biểu tượng
 	Auto-Rotate (turn the paper to each artboard)	Tự động xoay (xoay trang cho mỗi bảng vẽ)
+	Auto Color	Màu tự động
 	Automatic	Tự động
 	Automatic flatness	Độ phẳng tự động
 	Automatically	Tự động
@@ -1437,6 +1438,7 @@
 	Identify Objects By	Nhận diện đối tượng theo
 	Ignore	Bỏ qua
 	Ignore Artboards (all the art as one page)	Bỏ qua bảng vẽ (toàn bộ bản vẽ thành một trang)
+	Ignore Color	Bỏ qua màu
 	Ignore White	Bỏ qua màu trắng
 	Image	Hình ảnh
 	Image Info	Thông tin hình ảnh
@@ -3556,6 +3558,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}: bấm để chỉnh sang màu gần nhất ({hex})
 	“{file}” is protected by a password.	“{file}” được bảo vệ bằng mật khẩu.
 	● Recording	● Đang ghi
+imageTrace	Outline	Đường viền
@plural	Color Table ({n} color)|Color Table ({n} colors)	Bảng màu ({n} màu)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	Xóa {n} kiểu đồ họa này?
@plural	{n} area highlighted|{n} areas highlighted	{n} vùng được tô sáng
@@ -205,6 +205,7 @@
 	Author Title:	作者职务：
 	Author:	作者：
 	Auto	自动
+	Auto Color	自动颜色
 	Automatic	自动
 	Auto Size New Area Type	自动调整新区域文字大小
 	Auto Spell Check	自动拼写检查
@@ -1189,6 +1190,7 @@
 	Identify Objects By	对象识别方式
 	Ignore	忽略
 	Ignore Artboards (all the art as one page)	忽略画板 (所有图稿作为一页)
+	Ignore Color	忽略颜色
 	Ignore White	忽略白色
 	Palette:	调板：
 	Limited	有限
@@ -3129,6 +3131,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}：单击以修正为最接近的颜色 ({hex})
 	“{file}” is protected by a password.	“{file}”受密码保护。
 	● Recording	● 录制中
+imageTrace	Outline	轮廓
@plural	{n} item|{n} items	{n} 个项目
@plural	Color Table ({n} color)|Color Table ({n} colors)	颜色表 ({n} 色)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	要删除这 {n} 个图形样式吗？
@@ -216,6 +216,7 @@
 	Author Title:	作者職稱：
 	Author:	作者：
 	Auto	自動
+	Auto Color	自動顏色
 	Automatic	自動
 	Auto Size New Area Type	自動調整新區域文字大小
 	Auto Spell Check	自動拼字檢查
@@ -1219,6 +1220,7 @@
 	Identify Objects By	識別物件依據
 	Ignore	略過
 	Ignore Artboards (all the art as one page)	忽略工作區域 (所有圖稿視為單一頁面)
+	Ignore Color	忽略顏色
 	Ignore White	忽略白色
 	Palette:	調色盤：
 	Limited	有限
@@ -3222,6 +3224,7 @@
 	{warning}: click to correct to the closest color ({hex})	{warning}：按一下以修正為最接近的顏色 ({hex})
 	“{file}” is protected by a password.	「{file}」受密碼保護。
 	● Recording	● 錄製中
+imageTrace	Outline	輪廓
@plural	{n} item|{n} items	{n} 個項目
@plural	Color Table ({n} color)|Color Table ({n} colors)	色彩表 ({n} 色)
@plural	Delete this {n} graphic style?|Delete these {n} graphic styles?	要刪除這 {n} 個繪圖樣式嗎？
@@ -19,6 +19,16 @@ const MODES: [(&str, &str); 4] = [("blackAndWhite", "Black and White"), ("graysc
 const PALETTES: [&str; 4] = ["limited", "fullTone", "automatic", "documentLibrary"];

 /// Palette `id`, in the UI language.
+/// The colour Ignore Color leaves out in `params` (`ignoreColor`, `#rrggbb`): white when there is none.
+fn ignore_color(params: &Value) -> [u8; 3] {
+    let hex = params["ignoreColor"].as_str().unwrap_or("").trim_start_matches('#');
+    let channel = |i: usize| hex.get(i * 2..i * 2 + 2).and_then(|h| u8::from_str_radix(h, 16).ok());
+    match (hex.len(), channel(0), channel(1), channel(2)) {
+        (6, Some(r), Some(g), Some(b)) => [r, g, b],
+        _ => [255; 3],
+    }
+}
+
 fn palette_label(id: &str) -> &'static str {
    match id {
        "fullTone" => tl!("Full Tone"),
@@ -128,10 +138,16 @@ fn trace_with(app: &mut VectorcraftApp, preset: &str) {

 /// The built-in presets to choose from (`current` highlighted) → the one chosen. Listed only
 /// while the menu is open.
+/// A preset's name as shown: translated as a preset's name where the catalog has it so (the
+/// Outline preset is not the Outline view), as any other string else.
+fn preset_label(name: &str) -> &str {
+    crate::i18n::tr_ctx(crate::i18n::current(), "imageTrace", name)
+}
+
 fn preset_list(app: &mut VectorcraftApp, ui: &mut Ui, current: &str) -> Option<String> {
    let mut chosen = None;
    for (name, _) in presets(app) {
-        if ui.add(egui::Button::selectable(name == current, tl!(&name))).clicked() {
+        if ui.add(egui::Button::selectable(name == current, preset_label(&name))).clicked() {
            chosen = Some(name);
        }
    }
@@ -338,14 +354,29 @@ pub fn show(app: &mut VectorcraftApp, ui: &mut Ui) {
            }
            retrace |= release;
        }
-        for (key, label) in [("snapCurvesToLines", tl!("Snap Curves To Lines")), ("ignoreWhite", tl!("Ignore White"))] {
-            let on = st.params[key].as_bool().unwrap_or(false);
-            if widgets::check(ui, label, on, true) {
-                st.params[key] = json!(!on);
+        let snap = st.params["snapCurvesToLines"].as_bool().unwrap_or(false);
+        if widgets::check(ui, tl!("Snap Curves To Lines"), snap, true) {
+            st.params["snapCurvesToLines"] = json!(!snap);
+            st.preset = "Custom".into();
+            retrace = true;
+        }
+        // Ignore Color: white, unless another colour is picked.
+        ui.horizontal(|ui| {
+            let on = st.params["ignoreWhite"].as_bool().unwrap_or(false);
+            if widgets::check(ui, tl!("Ignore Color"), on, true) {
+                st.params["ignoreWhite"] = json!(!on);
                st.preset = "Custom".into();
                retrace = true;
            }
-        }
+            if on {
+                let mut rgb = ignore_color(&st.params);
+                if ui.color_edit_button_srgb(&mut rgb).changed() {
+                    st.params["ignoreColor"] = json!(format!("#{:02x}{:02x}{:02x}", rgb[0], rgb[1], rgb[2]));
+                    st.preset = "Custom".into();
+                    retrace = true;
+                }
+            }
+        });
    }
    widgets::divider(ui);
    if let Some((p, a, c)) = st.info {
@@ -1,6 +1,6 @@
 # Image Trace quality

-> **Last reviewed:** 2026-10-13 · **Last updated:** 2026-10-13 · **Change:** minor (thin lines in blurred and scanned art: Line Art 78 anchors to 46, 0.093 px off to 0.055)
+> **Last reviewed:** 2026-10-13 · **Last updated:** 2026-10-13 · **Change:** minor (two documented presets, Auto Color and Outline, measured; Ignore Color)

 What Image Trace (`crates/trace`) makes of images whose right answer is known, measured by a harness and
 compared with the numbers before each change. Nothing here is a judgement by eye, and nothing is compared
@@ -72,11 +72,12 @@ Each preset on the inputs it is meant for, all sizes and variants.
 | Technical Drawing | polygons, star, letter A, lines | 2.66 | 13.45 | 0.201 | 1.37 | 105.76 | 4.8 | 32 | 2.23 | 100 | 85 | 5.9 | – | – | – | – | 0.1 | 0.0 |
 | Flat Logo | two touching halves, four-colour badge | 0.43 | 3.53 | 3.106 | 88.50 | 0.78 | 69.9 | 352 | 38.92 | 38 | 80 | 237.0 | 0.0 | 0 | 13.8 | – | 59.1 | 0.2 |

-### Now (sub-pixel edges, the palette, photo smoothing, shared edges, memory, thin lines)
+### Now (sub-pixel edges, the palette, photo smoothing, shared edges, memory, thin lines, two more presets)

 | preset | inputs | ΔE | edge ΔE | off mean | off max | missed max | paths | anchors | × art | lines % | corners % | kinks | odd colours | odd px | gap px | overlap px | specks | outside px |
 |:--|:--|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|
 | Default | circle, ellipses, badge with a hole, letter D, polygons, star, letter A | 2.60 | 10.02 | 0.090 | 1.02 | 2.22 | 1.9 | 17 | 1.74 | 29 | 69 | 0.4 | – | – | 0.5 | 0.6 | 0.0 | 0.0 |
+| Auto Color | two touching halves, four-colour badge | 0.55 | 4.98 | 0.140 | 1.33 | 1.21 | 4.0 | 53 | 3.28 | 38 | 86 | 5.1 | 0.0 | 0 | 1.4 | 1.1 | 0.0 | 0.0 |
 | High Fidelity Photo | gradient, photo-like | 1.75 | 1.97 | – | – | – | 120.7 | 10001 | – | 38 | – | – | – | – | 0.0 | – | 10.3 | 0.0 |
 | Low Fidelity Photo | gradient, photo-like | 2.45 | 2.69 | – | – | – | 37.1 | 2118 | – | 41 | – | – | – | – | 0.0 | – | 0.0 | 0.0 |
 | 3 Colors | two touching halves | 0.42 | 3.98 | 0.104 | 0.91 | 0.91 | 2.0 | 11 | 1.81 | 39 | 100 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
@@ -88,9 +89,10 @@ Each preset on the inputs it is meant for, all sizes and variants.
 | Silhouettes | circle, ellipses, badge with a hole, letter D | 2.98 | 19.28 | 0.524 | 2.19 | 2.18 | 1.2 | 14 | 1.65 | 11 | 79 | 0.3 | – | – | – | – | 0.0 | 0.0 |
 | Line Art | lines | 2.62 | 9.44 | 0.055 | 0.96 | 105.82 | 5.4 | 46 | 2.29 | 41 | – | – | – | – | – | – | 0.1 | 0.0 |
 | Technical Drawing | polygons, star, letter A, lines | 2.54 | 9.65 | 0.084 | 1.02 | 105.82 | 4.8 | 46 | 3.23 | 71 | 73 | 0.8 | – | – | – | – | 1.2 | 0.0 |
+| Outline | lines | 2.93 | 15.91 | 0.310 | 1.84 | 106.00 | 5.0 | 81 | 4.03 | 15 | – | – | – | – | – | – | 0.0 | 0.0 |
 | Flat Logo | two touching halves, four-colour badge | 0.43 | 3.53 | 3.106 | 88.50 | 0.78 | 69.9 | 352 | 38.92 | 38 | 80 | 237.0 | 0.0 | 0 | 13.8 | – | 59.1 | 0.2 |

-The sections below are the numbers now (sub-pixel edges, the palette, photo smoothing, shared edges, memory, thin lines).
+The sections below are the numbers now (sub-pixel edges, the palette, photo smoothing, shared edges, memory, thin lines, two more presets).

 ## 1. Each preset on the inputs it is meant for

@@ -99,6 +101,7 @@ All sizes and variants (clean, aliased, blurred, noisy, scanned) of those inputs
 | preset | inputs | ΔE | edge ΔE | off mean | off max | missed max | paths | anchors | × art | lines % | corners % | kinks | odd colours | odd px | gap px | overlap px | specks | outside px |
 |:--|:--|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|--:|
 | Default | circle, ellipses, badge with a hole, letter D, polygons, star, letter A | 2.60 | 10.02 | 0.090 | 1.02 | 2.22 | 1.9 | 17 | 1.74 | 29 | 69 | 0.4 | – | – | 0.5 | 0.6 | 0.0 | 0.0 |
+| Auto Color | two touching halves, four-colour badge | 0.55 | 4.98 | 0.140 | 1.33 | 1.21 | 4.0 | 53 | 3.28 | 38 | 86 | 5.1 | 0.0 | 0 | 1.4 | 1.1 | 0.0 | 0.0 |
 | High Fidelity Photo | gradient, photo-like | 1.75 | 1.97 | – | – | – | 120.7 | 10001 | – | 38 | – | – | – | – | 0.0 | – | 10.3 | 0.0 |
 | Low Fidelity Photo | gradient, photo-like | 2.45 | 2.69 | – | – | – | 37.1 | 2118 | – | 41 | – | – | – | – | 0.0 | – | 0.0 | 0.0 |
 | 3 Colors | two touching halves | 0.42 | 3.98 | 0.104 | 0.91 | 0.91 | 2.0 | 11 | 1.81 | 39 | 100 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
@@ -110,6 +113,7 @@ All sizes and variants (clean, aliased, blurred, noisy, scanned) of those inputs
 | Silhouettes | circle, ellipses, badge with a hole, letter D | 2.98 | 19.28 | 0.524 | 2.19 | 2.18 | 1.2 | 14 | 1.65 | 11 | 79 | 0.3 | – | – | – | – | 0.0 | 0.0 |
 | Line Art | lines | 2.62 | 9.44 | 0.055 | 0.96 | 105.82 | 5.4 | 46 | 2.29 | 41 | – | – | – | – | – | – | 0.1 | 0.0 |
 | Technical Drawing | polygons, star, letter A, lines | 2.54 | 9.65 | 0.084 | 1.02 | 105.82 | 4.8 | 46 | 3.23 | 71 | 73 | 0.8 | – | – | – | – | 1.2 | 0.0 |
+| Outline | lines | 2.93 | 15.91 | 0.310 | 1.84 | 106.00 | 5.0 | 81 | 4.03 | 15 | – | – | – | – | – | – | 0.0 | 0.0 |
 | Flat Logo | two touching halves, four-colour badge | 0.43 | 3.53 | 3.106 | 88.50 | 0.78 | 69.9 | 352 | 38.92 | 38 | 80 | 237.0 | 0.0 | 0 | 13.8 | – | 59.1 | 0.2 |

 ## 2. Each preset on each kind of input (clean, three sizes)
@@ -121,6 +125,11 @@ All sizes and variants (clean, aliased, blurred, noisy, scanned) of those inputs
 | Default | thin lines | 0.53 | 4.28 | 0.045 | 0.47 | 105.51 | 3.3 | 23 | 1.15 | 48 | – | – | – | – | 0.0 | 0.0 | 0.0 | 0.0 |
 | Default | flat colour art | 19.91 | 17.97 | 0.172 | 0.51 | 179.34 | 1.5 | 16 | 1.17 | 14 | 0 | 0.0 | – | – | 0.0 | 0.0 | 0.0 | 0.0 |
 | Default | gradient, photo | 39.03 | 38.65 | – | – | – | 3.2 | 601 | – | 54 | – | – | – | – | 19.1 | 38.4 | 0.0 | 0.0 |
+| Auto Color | curved shapes | 0.06 | 2.45 | 0.043 | 0.27 | 0.28 | 1.8 | 17 | 1.78 | 15 | 100 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | polygons | 0.05 | 2.09 | 0.035 | 0.51 | 1.34 | 2.0 | 15 | 1.33 | 88 | 89 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | thin lines | 0.69 | 5.23 | 0.057 | 0.48 | 105.59 | 5.0 | 33 | 1.63 | 57 | – | – | 4.0 | 3216 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | flat colour art | 0.12 | 2.70 | 0.057 | 0.31 | 0.30 | 3.0 | 28 | 2.00 | 43 | 100 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | gradient, photo | 2.07 | 2.38 | – | – | – | 159.3 | 4430 | – | 19 | – | – | – | – | 22.7 | 32.4 | 0.0 | 0.0 |
 | High Fidelity Photo | curved shapes | 0.04 | 1.66 | 0.026 | 0.18 | 0.20 | 1.2 | 19 | 2.12 | 20 | 100 | 0.0 | 0.0 | 0 | 0.0 | – | 0.0 | 0.0 |
 | High Fidelity Photo | polygons | 0.05 | 1.88 | 0.031 | 0.51 | 1.34 | 1.7 | 16 | 1.43 | 88 | 89 | 0.0 | 0.0 | 0 | 0.0 | – | 0.0 | 0.0 |
 | High Fidelity Photo | thin lines | 0.34 | 5.96 | 0.075 | 0.85 | 4.31 | 40.3 | 339 | 16.93 | 37 | – | – | 27.3 | 4490 | 0.0 | – | 19.0 | 0.0 |
@@ -176,6 +185,11 @@ All sizes and variants (clean, aliased, blurred, noisy, scanned) of those inputs
 | Technical Drawing | thin lines | 0.53 | 5.80 | 0.121 | 0.50 | 55.74 | 15.3 | 70 | 3.50 | 88 | – | – | – | – | – | – | 7.7 | 0.0 |
 | Technical Drawing | flat colour art | 19.90 | 17.76 | 0.157 | 0.30 | 179.51 | 1.0 | 18 | 1.12 | 23 | 0 | 0.0 | – | – | – | – | 0.0 | 0.0 |
 | Technical Drawing | gradient, photo | 38.94 | 38.51 | – | – | – | 20.0 | 627 | – | 71 | – | – | – | – | – | – | 11.3 | 0.0 |
+| Outline | curved shapes | 23.38 | 44.70 | 0.498 | 0.90 | 0.52 | 1.2 | 16 | 1.76 | 19 | 83 | 0.0 | – | – | – | – | 0.0 | 0.0 |
+| Outline | polygons | 17.94 | 44.20 | 0.494 | 0.83 | 0.74 | 1.7 | 15 | 1.29 | 88 | 89 | 0.0 | – | – | – | – | 0.0 | 0.0 |
+| Outline | thin lines | 0.99 | 14.15 | 0.310 | 1.82 | 106.00 | 3.3 | 88 | 4.40 | 25 | – | – | – | – | – | – | 0.0 | 0.0 |
+| Outline | flat colour art | 26.69 | 32.18 | 0.494 | 0.92 | 178.93 | 1.0 | 18 | 1.30 | 21 | 0 | 0.0 | – | – | – | – | 0.0 | 0.0 |
+| Outline | gradient, photo | 39.57 | 39.32 | – | – | – | 7.5 | 421 | – | 56 | – | – | – | – | – | – | 0.0 | 0.8 |
 | Flat Logo | curved shapes | 0.06 | 2.14 | 0.036 | 0.25 | 0.25 | 1.8 | 31 | 3.38 | 19 | 100 | 0.0 | 0.0 | 0 | 6.8 | – | 0.0 | 0.0 |
 | Flat Logo | polygons | 0.09 | 3.44 | 0.060 | 0.35 | 1.03 | 2.0 | 35 | 3.17 | 67 | 94 | 0.0 | 0.0 | 0 | 6.8 | – | 0.0 | 0.0 |
 | Flat Logo | thin lines | 1.17 | 11.78 | 0.050 | 0.49 | all | 3.0 | 189 | 9.45 | 28 | – | – | 0.0 | 0 | 5467.1 | – | 0.0 | 0.0 |
@@ -191,6 +205,11 @@ All sizes and variants (clean, aliased, blurred, noisy, scanned) of those inputs
 | Default | blurred | 0.81 | 16.57 | 0.078 | 0.98 | 2.22 | 1.9 | 24 | 2.34 | 5 | 19 | 1.3 | – | – | 0.0 | 0.0 | 0.0 | 0.0 |
 | Default | noisy | 1.74 | 4.53 | 0.054 | 0.54 | 1.32 | 1.9 | 15 | 1.47 | 41 | 84 | 0.0 | – | – | 1.9 | 0.3 | 0.0 | 0.0 |
 | Default | scanned | 15.06 | 20.17 | 0.114 | 0.79 | 2.14 | 1.9 | 26 | 2.53 | 2 | 25 | 1.3 | – | – | 1.6 | 4.2 | 0.0 | 0.0 |
+| Auto Color | clean | 0.12 | 2.70 | 0.057 | 0.31 | 0.30 | 3.0 | 28 | 2.00 | 43 | 100 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | aliased | 0.29 | 10.43 | 0.298 | 1.00 | 1.00 | 3.0 | 27 | 2.05 | 43 | 100 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | blurred | 0.61 | 9.31 | 0.208 | 1.33 | 1.21 | 6.0 | 119 | 6.53 | 39 | 50 | 15.5 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 |
+| Auto Color | noisy | 0.85 | 2.61 | 0.076 | 0.52 | 0.58 | 3.0 | 34 | 2.34 | 28 | 88 | 0.0 | 0.0 | 0 | 0.3 | 0.5 | 0.0 | 0.0 |
+| Auto Color | scanned | 1.73 | 4.42 | 0.230 | 1.20 | 0.94 | 7.0 | 108 | 6.02 | 28 | 62 | 20.5 | 0.0 | 0 | 9.6 | 7.5 | 0.0 | 0.0 |
 | High Fidelity Photo | clean | 1.80 | 2.04 | – | – | – | 134.7 | 11321 | – | 39 | – | – | – | – | 0.0 | – | 7.3 | 0.0 |
 | High Fidelity Photo | aliased | 1.77 | 2.00 | – | – | – | 73.0 | 8004 | – | 40 | – | – | – | – | 0.0 | – | 5.5 | 0.0 |
 | High Fidelity Photo | blurred | 1.59 | 1.95 | – | – | – | 72.0 | 7388 | – | 40 | – | – | – | – | 0.0 | – | 0.5 | 0.0 |
@@ -246,6 +265,11 @@ All sizes and variants (clean, aliased, blurred, noisy, scanned) of those inputs
 | Technical Drawing | blurred | 1.03 | 16.48 | 0.076 | 0.96 | 105.82 | 2.0 | 58 | 4.73 | 26 | 25 | 2.7 | – | – | – | – | 0.0 | 0.0 |
 | Technical Drawing | noisy | 1.41 | 4.24 | 0.053 | 0.50 | 31.79 | 7.8 | 41 | 2.51 | 85 | 86 | 0.0 | – | – | – | – | 2.8 | 0.0 |
 | Technical Drawing | scanned | 14.44 | 19.98 | 0.100 | 0.87 | 105.79 | 2.0 | 98 | 7.51 | 23 | 34 | 2.7 | – | – | – | – | 0.0 | 0.0 |
+| Outline | clean | 0.99 | 14.15 | 0.310 | 1.82 | 106.00 | 3.3 | 88 | 4.40 | 25 | – | – | – | – | – | – | 0.0 | 0.0 |
+| Outline | aliased | 0.79 | 17.03 | 0.300 | 1.08 | 55.51 | 11.0 | 93 | 4.65 | 14 | – | – | – | – | – | – | 0.0 | 0.0 |
+| Outline | blurred | 1.66 | 18.46 | 0.311 | 1.84 | 105.72 | 3.0 | 68 | 3.40 | 0 | – | – | – | – | – | – | 0.0 | 0.0 |
+| Outline | noisy | 1.50 | 12.92 | 0.304 | 1.30 | 56.25 | 8.0 | 74 | 3.70 | 11 | – | – | – | – | – | – | 0.0 | 0.0 |
+| Outline | scanned | 13.60 | 20.48 | 0.323 | 1.79 | 105.55 | 3.0 | 65 | 3.25 | 9 | – | – | – | – | – | – | 0.0 | 0.0 |
 | Flat Logo | clean | 0.07 | 1.53 | 0.065 | 0.31 | 0.27 | 3.0 | 36 | 3.51 | 47 | 100 | 0.0 | 0.0 | 0 | 6.8 | – | 0.0 | 0.0 |
 | Flat Logo | aliased | 0.13 | 5.87 | 0.218 | 0.65 | 0.65 | 3.0 | 31 | 1.96 | 44 | 50 | 0.0 | 0.0 | 0 | 5.8 | – | 0.0 | 0.0 |
 | Flat Logo | blurred | 0.54 | 8.33 | 0.052 | 0.62 | 0.78 | 3.0 | 28 | 1.78 | 43 | 50 | 0.0 | 0.0 | 0 | 5.8 | – | 0.0 | 0.0 |
@@ -284,18 +308,20 @@ One trace at a time on this machine (all cores); memory is the peak allocated ab
 |:--|:--|--:|:--|
 | Default | photo-like | 1 | 0.04 s, 29 paths, 6701 anchors, 12 MB |
 | Default | four-colour badge | 1 | 0.02 s, 3 paths, 64 anchors, 12 MB |
-| High Fidelity Photo | photo-like | 1 | 0.21 s, 968 paths, 114383 anchors, 170 MB |
+| Auto Color | photo-like | 1 | 0.15 s, 732 paths, 45410 anchors, 19 MB |
+| Auto Color | four-colour badge | 1 | 0.05 s, 5 paths, 84 anchors, 12 MB |
+| High Fidelity Photo | photo-like | 1 | 0.22 s, 968 paths, 114383 anchors, 170 MB |
 | High Fidelity Photo | four-colour badge | 1 | 0.05 s, 6 paths, 172 anchors, 23 MB |
-| Low Fidelity Photo | photo-like | 1 | 0.11 s, 129 paths, 22929 anchors, 104 MB |
+| Low Fidelity Photo | photo-like | 1 | 0.11 s, 129 paths, 22929 anchors, 105 MB |
 | Low Fidelity Photo | four-colour badge | 1 | 0.05 s, 6 paths, 136 anchors, 23 MB |
-| 3 Colors | photo-like | 1 | 0.08 s, 9 paths, 3367 anchors, 18 MB |
+| 3 Colors | photo-like | 1 | 0.07 s, 9 paths, 3367 anchors, 18 MB |
 | 3 Colors | four-colour badge | 1 | 0.05 s, 4 paths, 88 anchors, 13 MB |
 | 6 Colors | photo-like | 1 | 0.08 s, 78 paths, 9008 anchors, 24 MB |
 | 6 Colors | four-colour badge | 1 | 0.05 s, 5 paths, 84 anchors, 12 MB |
-| 16 Colors | photo-like | 1 | 0.10 s, 178 paths, 20466 anchors, 31 MB |
+| 16 Colors | photo-like | 1 | 0.11 s, 178 paths, 20466 anchors, 31 MB |
 | 16 Colors | four-colour badge | 1 | 0.05 s, 5 paths, 88 anchors, 12 MB |
-| Shades of Gray | photo-like | 1 | 0.08 s, 81 paths, 6698 anchors, 41 MB |
-| Shades of Gray | four-colour badge | 1 | 0.06 s, 10 paths, 733 anchors, 34 MB |
+| Shades of Gray | photo-like | 1 | 0.08 s, 81 paths, 6698 anchors, 42 MB |
+| Shades of Gray | four-colour badge | 1 | 0.06 s, 10 paths, 733 anchors, 35 MB |
 | Black and White Logo | photo-like | 1 | 0.04 s, 71 paths, 5047 anchors, 8 MB |
 | Black and White Logo | four-colour badge | 1 | 0.02 s, 1 paths, 47 anchors, 6 MB |
 | Sketched Art | photo-like | 1 | 0.04 s, 5 paths, 2880 anchors, 8 MB |
@@ -306,65 +332,76 @@ One trace at a time on this machine (all cores); memory is the peak allocated ab
 | Line Art | four-colour badge | 1 | 0.02 s, 1 paths, 38 anchors, 6 MB |
 | Technical Drawing | photo-like | 1 | 0.04 s, 221 paths, 6443 anchors, 8 MB |
 | Technical Drawing | four-colour badge | 1 | 0.02 s, 1 paths, 47 anchors, 6 MB |
+| Outline | photo-like | 1 | 0.05 s, 45 paths, 3875 anchors, 16 MB |
+| Outline | four-colour badge | 1 | 0.03 s, 1 paths, 38 anchors, 11 MB |
 | Flat Logo | photo-like | 1 | refused after 0.09 s (not flat art), 40 MB |
 | Flat Logo | four-colour badge | 1 | 0.65 s, 5 paths, 78 anchors, 146 MB |
 | Default | photo-like | 4 | 0.18 s, 48 paths, 15720 anchors, 49 MB |
 | Default | four-colour badge | 4 | 0.09 s, 3 paths, 72 anchors, 48 MB |
-| High Fidelity Photo | photo-like | 4 | 0.69 s, 4475 paths, 341272 anchors, 634 MB |
-| High Fidelity Photo | four-colour badge | 4 | 0.23 s, 6 paths, 200 anchors, 93 MB |
-| Low Fidelity Photo | photo-like | 4 | 0.35 s, 304 paths, 61093 anchors, 401 MB |
-| Low Fidelity Photo | four-colour badge | 4 | 0.22 s, 6 paths, 152 anchors, 94 MB |
-| 3 Colors | photo-like | 4 | 0.27 s, 20 paths, 8453 anchors, 73 MB |
-| 3 Colors | four-colour badge | 4 | 0.18 s, 4 paths, 122 anchors, 53 MB |
-| 6 Colors | photo-like | 4 | 0.26 s, 115 paths, 23128 anchors, 83 MB |
+| Auto Color | photo-like | 4 | 0.44 s, 1469 paths, 148161 anchors, 89 MB |
+| Auto Color | four-colour badge | 4 | 0.18 s, 5 paths, 92 anchors, 46 MB |
+| High Fidelity Photo | photo-like | 4 | 0.70 s, 4475 paths, 341272 anchors, 634 MB |
+| High Fidelity Photo | four-colour badge | 4 | 0.21 s, 6 paths, 200 anchors, 97 MB |
+| Low Fidelity Photo | photo-like | 4 | 0.36 s, 304 paths, 61093 anchors, 401 MB |
+| Low Fidelity Photo | four-colour badge | 4 | 0.23 s, 6 paths, 152 anchors, 97 MB |
+| 3 Colors | photo-like | 4 | 0.26 s, 20 paths, 8453 anchors, 73 MB |
+| 3 Colors | four-colour badge | 4 | 0.18 s, 4 paths, 122 anchors, 51 MB |
+| 6 Colors | photo-like | 4 | 0.26 s, 115 paths, 23128 anchors, 100 MB |
 | 6 Colors | four-colour badge | 4 | 0.18 s, 5 paths, 92 anchors, 46 MB |
-| 16 Colors | photo-like | 4 | 0.29 s, 353 paths, 52749 anchors, 109 MB |
+| 16 Colors | photo-like | 4 | 0.28 s, 353 paths, 52749 anchors, 124 MB |
 | 16 Colors | four-colour badge | 4 | 0.18 s, 5 paths, 96 anchors, 46 MB |
-| Shades of Gray | photo-like | 4 | 0.28 s, 138 paths, 18794 anchors, 158 MB |
-| Shades of Gray | four-colour badge | 4 | 0.26 s, 10 paths, 1265 anchors, 137 MB |
-| Black and White Logo | photo-like | 4 | 0.20 s, 208 paths, 13717 anchors, 32 MB |
+| Shades of Gray | photo-like | 4 | 0.29 s, 138 paths, 18794 anchors, 157 MB |
+| Shades of Gray | four-colour badge | 4 | 0.26 s, 10 paths, 1265 anchors, 134 MB |
+| Black and White Logo | photo-like | 4 | 0.18 s, 208 paths, 13717 anchors, 32 MB |
 | Black and White Logo | four-colour badge | 4 | 0.08 s, 1 paths, 57 anchors, 24 MB |
-| Sketched Art | photo-like | 4 | 0.17 s, 9 paths, 5358 anchors, 32 MB |
+| Sketched Art | photo-like | 4 | 0.18 s, 9 paths, 5358 anchors, 32 MB |
 | Sketched Art | four-colour badge | 4 | 0.08 s, 2 paths, 196 anchors, 24 MB |
-| Silhouettes | photo-like | 4 | 0.19 s, 2 paths, 1457 anchors, 36 MB |
+| Silhouettes | photo-like | 4 | 0.18 s, 2 paths, 1457 anchors, 36 MB |
 | Silhouettes | four-colour badge | 4 | 0.08 s, 1 paths, 28 anchors, 24 MB |
-| Line Art | photo-like | 4 | 0.18 s, 127 paths, 11461 anchors, 32 MB |
+| Line Art | photo-like | 4 | 0.19 s, 127 paths, 11461 anchors, 32 MB |
 | Line Art | four-colour badge | 4 | 0.08 s, 1 paths, 42 anchors, 24 MB |
 | Technical Drawing | photo-like | 4 | 0.18 s, 931 paths, 21061 anchors, 32 MB |
 | Technical Drawing | four-colour badge | 4 | 0.08 s, 1 paths, 57 anchors, 24 MB |
+| Outline | photo-like | 4 | 0.23 s, 113 paths, 10455 anchors, 64 MB |
+| Outline | four-colour badge | 4 | 0.12 s, 1 paths, 42 anchors, 44 MB |
 | Flat Logo | photo-like | 4 | refused after 0.10 s (not flat art), 40 MB |
-| Flat Logo | four-colour badge | 4 | 0.68 s, 5 paths, 69 anchors, 146 MB |
-| Default | photo-like | 16 | 1.08 s, 127 paths, 34766 anchors, 199 MB |
-| Default | four-colour badge | 16 | 0.47 s, 3 paths, 88 anchors, 184 MB |
-| High Fidelity Photo | photo-like | 16 | 3.68 s, 31125 paths, 1175671 anchors, 880 MB |
+| Flat Logo | four-colour badge | 4 | 0.65 s, 5 paths, 69 anchors, 146 MB |
+| Default | photo-like | 16 | 0.90 s, 127 paths, 34766 anchors, 199 MB |
+| Default | four-colour badge | 16 | 0.48 s, 3 paths, 88 anchors, 184 MB |
+| Auto Color | photo-like | 16 | 1.58 s, 5391 paths, 449395 anchors, 279 MB |
+| Auto Color | four-colour badge | 16 | 0.83 s, 5 paths, 126 anchors, 184 MB |
+| High Fidelity Photo | photo-like | 16 | 3.72 s, 31125 paths, 1175671 anchors, 880 MB |
 | High Fidelity Photo | four-colour badge | 16 | 1.05 s, 6 paths, 274 anchors, 257 MB |
-| Low Fidelity Photo | photo-like | 16 | 1.78 s, 2036 paths, 181832 anchors, 754 MB |
-| Low Fidelity Photo | four-colour badge | 16 | 1.07 s, 6 paths, 187 anchors, 257 MB |
-| 3 Colors | photo-like | 16 | 1.17 s, 76 paths, 22878 anchors, 290 MB |
-| 3 Colors | four-colour badge | 16 | 0.82 s, 4 paths, 190 anchors, 205 MB |
-| 6 Colors | photo-like | 16 | 1.09 s, 470 paths, 60539 anchors, 298 MB |
-| 6 Colors | four-colour badge | 16 | 0.81 s, 5 paths, 126 anchors, 184 MB |
-| 16 Colors | photo-like | 16 | 1.09 s, 1973 paths, 145173 anchors, 303 MB |
-| 16 Colors | four-colour badge | 16 | 0.83 s, 5 paths, 128 anchors, 184 MB |
-| Shades of Gray | photo-like | 16 | 1.61 s, 686 paths, 53872 anchors, 407 MB |
-| Shades of Gray | four-colour badge | 16 | 1.35 s, 9 paths, 2216 anchors, 270 MB |
-| Black and White Logo | photo-like | 16 | 1.01 s, 1128 paths, 45117 anchors, 129 MB |
+| Low Fidelity Photo | photo-like | 16 | 1.75 s, 2036 paths, 181832 anchors, 754 MB |
+| Low Fidelity Photo | four-colour badge | 16 | 1.04 s, 6 paths, 187 anchors, 257 MB |
+| 3 Colors | photo-like | 16 | 1.11 s, 76 paths, 22878 anchors, 290 MB |
+| 3 Colors | four-colour badge | 16 | 0.81 s, 4 paths, 190 anchors, 205 MB |
+| 6 Colors | photo-like | 16 | 1.12 s, 470 paths, 60539 anchors, 298 MB |
+| 6 Colors | four-colour badge | 16 | 0.79 s, 5 paths, 126 anchors, 184 MB |
+| 16 Colors | photo-like | 16 | 1.10 s, 1973 paths, 145173 anchors, 303 MB |
+| 16 Colors | four-colour badge | 16 | 0.81 s, 5 paths, 128 anchors, 184 MB |
+| Shades of Gray | photo-like | 16 | 1.56 s, 686 paths, 53872 anchors, 407 MB |
+| Shades of Gray | four-colour badge | 16 | 1.30 s, 9 paths, 2216 anchors, 270 MB |
+| Black and White Logo | photo-like | 16 | 1.10 s, 1128 paths, 45117 anchors, 129 MB |
 | Black and White Logo | four-colour badge | 16 | 0.36 s, 1 paths, 69 anchors, 88 MB |
-| Sketched Art | photo-like | 16 | 0.99 s, 15 paths, 11568 anchors, 128 MB |
-| Sketched Art | four-colour badge | 16 | 0.39 s, 2 paths, 361 anchors, 88 MB |
-| Silhouettes | photo-like | 16 | 1.30 s, 3 paths, 3358 anchors, 144 MB |
+| Sketched Art | photo-like | 16 | 0.94 s, 15 paths, 11568 anchors, 128 MB |
+| Sketched Art | four-colour badge | 16 | 0.37 s, 2 paths, 361 anchors, 88 MB |
+| Silhouettes | photo-like | 16 | 1.31 s, 3 paths, 3358 anchors, 144 MB |
 | Silhouettes | four-colour badge | 16 | 0.41 s, 1 paths, 32 anchors, 95 MB |
-| Line Art | photo-like | 16 | 0.95 s, 713 paths, 36212 anchors, 129 MB |
-| Line Art | four-colour badge | 16 | 0.34 s, 1 paths, 49 anchors, 88 MB |
-| Technical Drawing | photo-like | 16 | 1.09 s, 4578 paths, 79049 anchors, 130 MB |
-| Technical Drawing | four-colour badge | 16 | 0.37 s, 1 paths, 69 anchors, 88 MB |
-| Flat Logo | photo-like | 16 | refused after 0.11 s (not flat art), 40 MB |
-| Flat Logo | four-colour badge | 16 | 0.67 s, 5 paths, 67 anchors, 146 MB |
+| Line Art | photo-like | 16 | 1.01 s, 713 paths, 36212 anchors, 129 MB |
+| Line Art | four-colour badge | 16 | 0.35 s, 1 paths, 49 anchors, 88 MB |
+| Technical Drawing | photo-like | 16 | 1.14 s, 4578 paths, 79049 anchors, 130 MB |
+| Technical Drawing | four-colour badge | 16 | 0.36 s, 1 paths, 69 anchors, 88 MB |
+| Outline | photo-like | 16 | 1.28 s, 632 paths, 31715 anchors, 256 MB |
+| Outline | four-colour badge | 16 | 0.55 s, 1 paths, 49 anchors, 176 MB |
+| Flat Logo | photo-like | 16 | refused after 0.12 s (not flat art), 40 MB |
+| Flat Logo | four-colour badge | 16 | 0.66 s, 5 paths, 67 anchors, 146 MB |

 ## Revision history

 | date | change |
 |:--|:--|
+| 2026-10-13 | Ignore Color; the Auto Color and Outline presets, measured from here on (Outline is the first measure of Create: Strokes) |
 | 2026-10-13 | Thin lines: black and white read against the image's darkest black and the paper near each edge |
 | 2026-10-13 | Memory: layers traced within the box of their pixels and a few at a time (16 megapixel photo: 3.9 GB to 0.9 GB) |
 | 2026-10-13 | Shared edges: outlines are cut at their junctions and each piece is fitted once, the same from either side |