feat(options): command line text colour and a fonts folder

Display gets a command line text colour (blank keeps the theme's); it
covers history, prompts and the input, while errors stay red. Files
lists the fonts folder that text resolution searches, so .shx files can
be added by hand; opening it creates it first.

Discussions #1493, #1372

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

locales/ar-SA/opencadstudio.ftl

@@ -2341,6 +2341,7 @@ common =
     .load-linetypes = تحميل أنواع الخطوط
     .requires-two-positive-values = يتطلب قيمتين موجبتين (x,y) أو قيمة واحدة لكليهما.
     .snap-marker-color = لون علامة الالتقاط
+    .command-line-text-color = لون نص سطر الأوامر
     .linetypes-loaded = تم تحميل __ocs_fmt_0__ من أنواع الخطوط.
     .geometric-center-snap = المركز الهندسي
     .no-trim-option = بدون تشذيب

locales/bg-BG/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Зареждане на типове линии
     .requires-two-positive-values = Изискват се две положителни стойности (x,y) или една за двете.
     .snap-marker-color = Цвят на маркера за прихващане
+    .command-line-text-color = Цвят на текста в командния ред
     .linetypes-loaded = Заредени типове линии: __ocs_fmt_0__.
     .geometric-center-snap = Геометричен център
     .no-trim-option = Без подрязване

locales/cs-CZ/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Načíst typy čar
     .requires-two-positive-values = Vyžaduje dvě kladné hodnoty (x,y) nebo jednu pro obě.
     .snap-marker-color = Barva značky uchopení
+    .command-line-text-color = Barva textu příkazového řádku
     .linetypes-loaded = Načteno typů čar: __ocs_fmt_0__.
     .geometric-center-snap = Geometrický střed
     .no-trim-option = Neoříznout

locales/de-DE/opencadstudio.ftl

@@ -2329,6 +2329,7 @@ common =
     .load-linetypes = Linientypen laden
     .requires-two-positive-values = Erfordert zwei positive Werte (x,y) oder einen für beide.
     .snap-marker-color = Farbe der Fangmarkierung
+    .command-line-text-color = Textfarbe der Befehlszeile
     .linetypes-loaded = __ocs_fmt_0__ Linientyp(en) geladen.
     .geometric-center-snap = Geometrischer Mittelpunkt
     .no-trim-option = Nicht stutzen

locales/el-GR/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Φόρτωση τύπων γραμμής
     .requires-two-positive-values = Απαιτούνται δύο θετικές τιμές (x,y) ή μία και για τις δύο.
     .snap-marker-color = Χρώμα δείκτη έλξης
+    .command-line-text-color = Χρώμα κειμένου γραμμής εντολών
     .linetypes-loaded = Φορτώθηκαν __ocs_fmt_0__ τύποι γραμμής.
     .geometric-center-snap = Γεωμετρικό κέντρο
     .no-trim-option = Χωρίς περικοπή

locales/en-US/opencadstudio.ftl

@@ -2329,6 +2329,7 @@ common =
     .load-linetypes = Load Linetypes
     .requires-two-positive-values = Requires two positive values (x,y) or one for both.
     .snap-marker-color = Snap marker color
+    .command-line-text-color = Command line text color
     .linetypes-loaded = __ocs_fmt_0__ linetype(s) loaded.
     .geometric-center-snap = Geometric Center
     .no-trim-option = No trim

locales/es-ES/opencadstudio.ftl

@@ -2329,6 +2329,7 @@ common =
     .load-linetypes = Cargar tipos de línea
     .requires-two-positive-values = Requiere dos valores positivos (x,y) o uno para ambos.
     .snap-marker-color = Color del marcador de referencia
+    .command-line-text-color = Color del texto de la línea de comandos
     .linetypes-loaded = __ocs_fmt_0__ tipo(s) de línea cargado(s).
     .geometric-center-snap = Centro geométrico
     .no-trim-option = No recortar

locales/fi-FI/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Lataa viivatyypit
     .requires-two-positive-values = Vaatii kaksi positiivista arvoa (x,y) tai yhden molemmille.
     .snap-marker-color = Kohdistusmerkin väri
+    .command-line-text-color = Komentorivin tekstin väri
     .linetypes-loaded = Ladattu __ocs_fmt_0__ viivatyyppiä.
     .geometric-center-snap = Geometrinen keskipiste
     .no-trim-option = Ei trimmausta

locales/fr-FR/opencadstudio.ftl

@@ -2329,6 +2329,7 @@ common =
     .load-linetypes = Charger des types de ligne
     .requires-two-positive-values = Nécessite deux valeurs positives (x,y) ou une seule pour les deux.
     .snap-marker-color = Couleur du marqueur d'accrochage
+    .command-line-text-color = Couleur du texte de la ligne de commande
     .linetypes-loaded = __ocs_fmt_0__ type(s) de ligne chargé(s).
     .geometric-center-snap = Centre géométrique
     .no-trim-option = Sans ajuster

locales/hi-IN/opencadstudio.ftl

@@ -2317,6 +2317,7 @@ common =
     .load-linetypes = लाइनटाइप लोड करें
     .requires-two-positive-values = दो धनात्मक मान (x,y) या दोनों के लिए एक मान आवश्यक है।
     .snap-marker-color = स्नैप मार्कर का रंग
+    .command-line-text-color = कमांड लाइन टेक्स्ट रंग
     .linetypes-loaded = __ocs_fmt_0__ लाइनटाइप लोड हुए।
     .geometric-center-snap = ज्यामितीय केंद्र
     .no-trim-option = ट्रिम नहीं

locales/hu-HU/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Vonaltípusok betöltése
     .requires-two-positive-values = Két pozitív érték (x,y) vagy egy közös érték szükséges.
     .snap-marker-color = Illesztési jelölő színe
+    .command-line-text-color = Parancssor szövegszíne
     .linetypes-loaded = __ocs_fmt_0__ vonaltípus betöltve.
     .geometric-center-snap = Geometriai középpont
     .no-trim-option = Nincs vágás

locales/it-IT/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Carica tipi di linea
     .requires-two-positive-values = Richiede due valori positivi (x,y) o uno per entrambi.
     .snap-marker-color = Colore del marcatore di snap
+    .command-line-text-color = Colore del testo della riga di comando
     .linetypes-loaded = __ocs_fmt_0__ tipo/i di linea caricato/i.
     .geometric-center-snap = Centro geometrico
     .no-trim-option = Non tagliare

locales/ja-JP/opencadstudio.ftl

@@ -2319,6 +2319,7 @@ common =
     .load-linetypes = 線種をロード
     .requires-two-positive-values = 2つの正の値 (x,y)、または両方に共通の1つの値が必要です。
     .snap-marker-color = スナップ マーカーの色
+    .command-line-text-color = コマンドラインの文字色
     .linetypes-loaded = __ocs_fmt_0__ 個の線種をロードしました。
     .geometric-center-snap = 図心
     .no-trim-option = トリムしない

locales/ko-KR/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = 선종류 로드
     .requires-two-positive-values = 양수 값 두 개(x,y) 또는 둘 다에 쓸 값 하나가 필요합니다.
     .snap-marker-color = 스냅 마커 색상
+    .command-line-text-color = 명령줄 텍스트 색상
     .linetypes-loaded = 선종류 __ocs_fmt_0__개를 로드했습니다.
     .geometric-center-snap = 기하학적 중심
     .no-trim-option = 자르지 않기

locales/nl-NL/opencadstudio.ftl

@@ -2329,6 +2329,7 @@ common =
     .load-linetypes = Lijntypen laden
     .requires-two-positive-values = Vereist twee positieve waarden (x,y) of één voor beide.
     .snap-marker-color = Kleur van snapmarkering
+    .command-line-text-color = Tekstkleur opdrachtregel
     .linetypes-loaded = __ocs_fmt_0__ lijntype(n) geladen.
     .geometric-center-snap = Geometrisch middelpunt
     .no-trim-option = Niet trimmen

locales/pl-PL/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = Wczytaj rodzaje linii
     .requires-two-positive-values = Wymaga dwóch wartości dodatnich (x,y) lub jednej dla obu.
     .snap-marker-color = Kolor znacznika przyciągania
+    .command-line-text-color = Kolor tekstu wiersza poleceń
     .linetypes-loaded = Wczytano rodzaje linii: __ocs_fmt_0__.
     .geometric-center-snap = Środek geometryczny
     .no-trim-option = Bez przycinania

locales/pt-BR/opencadstudio.ftl

@@ -2329,6 +2329,7 @@ common =
     .load-linetypes = Carregar tipos de linha
     .requires-two-positive-values = Requer dois valores positivos (x,y) ou um para ambos.
     .snap-marker-color = Cor do marcador de snap
+    .command-line-text-color = Cor do texto da linha de comando
     .linetypes-loaded = __ocs_fmt_0__ tipo(s) de linha carregado(s).
     .geometric-center-snap = Centro geométrico
     .no-trim-option = Não aparar

locales/ru-RU/opencadstudio.ftl

@@ -2332,6 +2332,7 @@ common =
     .load-linetypes = Загрузить типы линий
     .requires-two-positive-values = Требуются два положительных значения (x,y) или одно для обоих.
     .snap-marker-color = Цвет маркера привязки
+    .command-line-text-color = Цвет текста командной строки
     .linetypes-loaded = Загружено типов линий: __ocs_fmt_0__.
     .geometric-center-snap = Геометрический центр
     .no-trim-option = Без обрезки

locales/tr-TR/opencadstudio.ftl

@@ -2313,6 +2313,7 @@ common =
     .load-linetypes = Çizgi tiplerini yükle
     .requires-two-positive-values = İki pozitif değer (x,y) ya da ikisi için tek değer gerekir.
     .snap-marker-color = Yakalama işaretçisi rengi
+    .command-line-text-color = Komut satırı metin rengi
     .linetypes-loaded = __ocs_fmt_0__ çizgi tipi yüklendi.
     .geometric-center-snap = Geometrik merkez
     .no-trim-option = Budama yok

locales/zh-CN/opencadstudio.ftl

@@ -2316,6 +2316,7 @@ common =
     .load-linetypes = 加载线型
     .requires-two-positive-values = 需要两个正值 (x,y)，或一个同时用于两者的值。
     .snap-marker-color = 捕捉标记颜色
+    .command-line-text-color = 命令行文字颜色
     .linetypes-loaded = 已加载 __ocs_fmt_0__ 个线型。
     .geometric-center-snap = 几何中心
     .no-trim-option = 不修剪

locales/zh-TW/opencadstudio.ftl

@@ -2328,6 +2328,7 @@ common =
     .load-linetypes = 載入線型
     .requires-two-positive-values = 需要兩個正值 (x,y)，或一個同時用於兩者的值。
     .snap-marker-color = 鎖點標記顏色
+    .command-line-text-color = 命令列文字顏色
     .linetypes-loaded = 已載入 __ocs_fmt_0__ 個線型。
     .geometric-center-snap = 幾何中心
     .no-trim-option = 不修剪

src/app/mod.rs

@@ -592,6 +592,10 @@ pub(super) struct OpenCADStudio {
     crosshair_color_input: String,
     /// Explicit object-snap marker colour; `None` keeps the automatic one.
     snap_marker_color: Option<[u8; 3]>,
+    /// Explicit command-line text colour; `None` keeps the theme's.
+    command_text_color: Option<[u8; 3]>,
+    /// Editable Options buffer for the command-line text colour.
+    command_text_color_input: String,
     /// Editable Options buffer for the snap marker colour.
     snap_marker_color_input: String,
     /// Defer the ISOLINES mesh rebuild until the slider is released.
@@ -2296,6 +2300,7 @@ pub enum Message {
     /// Edit the optional crosshair RGB value; blank restores automatic contrast.
     CrosshairColorChanged(String),
     SnapMarkerColorChanged(String),
+    CommandTextColorChanged(String),
     /// Options → Files: the default template for new drawings.
     QnewTemplateChanged(String),
     QnewTemplateBrowse,
@@ -4167,6 +4172,8 @@ impl OpenCADStudio {
             crosshair_color_input: String::new(),
             snap_marker_color: None,
             snap_marker_color_input: String::new(),
+            command_text_color: None,
+            command_text_color_input: String::new(),
             isolines_awaiting_regen: false,
             snap_angle_input: "0".to_string(),
             lineweight_display_scale: 100,

src/app/settings.rs

@@ -432,6 +432,8 @@ pub struct UserSettings {
     pub crosshair_color: Option<[u8; 3]>,
     /// Explicit object-snap marker RGB. `None` keeps the automatic colour.
     pub snap_marker_color: Option<[u8; 3]>,
+    /// Explicit command-line text RGB. `None` keeps the theme's.
+    pub command_text_color: Option<[u8; 3]>,
     /// Model-space lineweight preview scale as a percentage.
     pub lineweight_display_scale: i32,
     /// Isometric drafting changes the grid and crosshair to the active axis
@@ -825,6 +827,7 @@ impl Default for UserSettings {
             cursor_type: CursorType::Crosshair,
             crosshair_color: None,
             snap_marker_color: None,
+            command_text_color: None,
             lineweight_display_scale: 100,
             isometric_drafting: false,
             iso_plane: IsoPlane::Left,

src/app/update/file.rs

@@ -682,6 +682,7 @@ impl OpenCADStudio {
             cursor_type: self.cursor_type,
             crosshair_color: self.crosshair_color,
             snap_marker_color: self.snap_marker_color,
+            command_text_color: self.command_text_color,
             lineweight_display_scale: self.lineweight_display_scale,
             isometric_drafting: self.isometric_drafting,
             iso_plane: self.iso_plane,
@@ -798,6 +799,12 @@ impl OpenCADStudio {
             .snap_marker_color
             .map(crate::app::config::rgb_to_hex)
             .unwrap_or_default();
+        self.command_text_color = s.command_text_color;
+        self.command_text_color_input = s
+            .command_text_color
+            .map(crate::app::config::rgb_to_hex)
+            .unwrap_or_default();
+        crate::ui::command_line::set_text_color(s.command_text_color);
         self.lineweight_display_scale = s.lineweight_display_scale.clamp(25, 200);
         self.isometric_drafting = s.isometric_drafting;
         self.iso_plane = s.iso_plane;

src/app/update/mod.rs

@@ -8060,6 +8060,20 @@ impl OpenCADStudio {
                     None => Message::Noop,
                 },
             ),
+            Message::CommandTextColorChanged(value) => {
+                self.command_text_color_input = value.clone();
+                let color = if value.trim().is_empty() {
+                    None
+                } else if let Some(rgb) = crate::app::config::parse_hex(&value) {
+                    Some(rgb)
+                } else {
+                    return Task::none();
+                };
+                self.command_text_color = color;
+                crate::ui::command_line::set_text_color(color);
+                self.persist_settings_if_changed();
+                Task::none()
+            }
             Message::SnapMarkerColorChanged(value) => {
                 self.snap_marker_color_input = value.clone();
                 if value.trim().is_empty() {
@@ -8532,7 +8546,11 @@ impl OpenCADStudio {
                 Task::none()
             }
 
-            Message::OpenFolder(path) => crate::sys::open_url(&path, None),
+            Message::OpenFolder(path) => {
+                // The fonts folder exists only once something is put in it.
+                let _ = std::fs::create_dir_all(&path);
+                crate::sys::open_url(&path, None)
+            }
 
             Message::PickDragRectToggled(rectangle) => {
                 self.pick_drag_rect = rectangle;

src/app/view/modal.rs

@@ -376,6 +376,8 @@ impl OpenCADStudio {
                                         .map(|p| p.display().to_string()),
                                     autosave: crate::config::config_dir()
                                         .map(|_| std::env::temp_dir().display().to_string()),
+                                    fonts: crate::io::font_repo::fonts_dir()
+                                        .map(|p| p.display().to_string()),
                                 }
                             }
                             #[cfg(target_arch = "wasm32")]
@@ -391,6 +393,8 @@ impl OpenCADStudio {
                         &self.crosshair_color_input,
                         self.snap_marker_color,
                         &self.snap_marker_color_input,
+                        self.command_text_color,
+                        &self.command_text_color_input,
                         self.lineweight_display_scale,
                         &self.model_space,
                         &self.model_bg_input,

src/locale_catalog.rs

@@ -4894,6 +4894,7 @@ pub(super) fn message_attribute(source: &str) -> Option<(&'static str, &'static
         "Load Linetypes" => Some(("common", "load-linetypes")),
         "Requires two positive values (x,y) or one for both." => Some(("common", "requires-two-positive-values")),
         "Snap marker color" => Some(("common", "snap-marker-color")),
+        "Command line text color" => Some(("common", "command-line-text-color")),
         "{added} linetype(s) loaded." => Some(("common", "linetypes-loaded")),
         "Geometric Center" => Some(("common", "geometric-center-snap")),
         "No trim" => Some(("common", "no-trim-option")),

src/ui/command_line.rs

@@ -801,12 +801,18 @@ impl CommandLine {
                 .on_input(Message::CommandInput)
                 .on_submit(Message::CommandSubmit);
         }
-        let input = input.size(11).padding(Padding {
-            top: 4.0,
-            right: 30.0,
-            bottom: 4.0,
-            left: 6.0,
-        });
+        let input = input
+            .size(11)
+            .padding(Padding {
+                top: 4.0,
+                right: 30.0,
+                bottom: 4.0,
+                left: 6.0,
+            })
+            .style(|theme: &Theme, status| text_input::Style {
+                value: text_color(theme),
+                ..text_input::default(theme, status)
+            });
         // Autocomplete suggestions panel, shown above the input row
         // when the user has typed a prefix that matches at least one
         // command. Each row is a button — clicking it dispatches the
@@ -1159,18 +1165,43 @@ fn header_btn_style(theme: &Theme, status: button::Status) -> button::Style {
     }
 }
 
+/// The user's command-line text colour, packed `0x01RRGGBB`; 0 keeps the
+/// theme's. Global because the history highlighter takes a plain `fn`.
+static TEXT_COLOR: std::sync::atomic::AtomicU32 = std::sync::atomic::AtomicU32::new(0);
+
+pub fn set_text_color(rgb: Option<[u8; 3]>) {
+    let packed = rgb.map_or(0, |[r, g, b]| 1 << 24 | u32::from_be_bytes([0, r, g, b]));
+    TEXT_COLOR.store(packed, std::sync::atomic::Ordering::Relaxed);
+}
+
+fn user_text_color() -> Option<Color> {
+    match TEXT_COLOR.load(std::sync::atomic::Ordering::Relaxed) {
+        0 => None,
+        packed => {
+            let [_, r, g, b] = packed.to_be_bytes();
+            Some(Color::from_rgb8(r, g, b))
+        }
+    }
+}
+
+fn text_color(theme: &Theme) -> Color {
+    user_text_color().unwrap_or(theme.palette().background.base.text)
+}
+
 fn history_color(theme: &Theme, kind: &EntryKind) -> Color {
     let palette = theme.palette();
     match kind {
-        EntryKind::Command => palette.background.base.text,
-        EntryKind::Output => palette.background.base.text.scale_alpha(0.72),
+        EntryKind::Command => text_color(theme),
+        EntryKind::Output => text_color(theme).scale_alpha(0.72),
         EntryKind::Error => palette.danger.base.color,
-        EntryKind::Info => accessible_accent_threshold(
-            palette.primary.base.color,
-            palette.background.base.color,
-            palette.background.base.text,
-            4.5,
-        ),
+        EntryKind::Info => user_text_color().unwrap_or_else(|| {
+            accessible_accent_threshold(
+                palette.primary.base.color,
+                palette.background.base.color,
+                palette.background.base.text,
+                4.5,
+            )
+        }),
     }
 }
 

src/ui/window/options.rs

@@ -97,6 +97,9 @@ pub struct Folders {
     pub plot_styles: Option<String>,
     pub plugins: Option<String>,
     pub autosave: Option<String>,
+    /// Where `.shx` / `.ttf` fonts dropped in by the user (or downloaded for
+    /// a drawing) are found.
+    pub fonts: Option<String>,
 }
 
 /// Values read from the current drawing's header rather than from preferences.
@@ -217,6 +220,8 @@ pub fn view_window<'a>(
     crosshair_color_input: &'a str,
     snap_marker_color: Option<[u8; 3]>,
     snap_marker_color_input: &'a str,
+    command_text_color: Option<[u8; 3]>,
+    command_text_color_input: &'a str,
     lineweight_display_scale: i32,
     model_space: &'a crate::app::config::ModelSpaceThemeConfig,
     model_bg_input: &'a str,
@@ -526,6 +531,24 @@ pub fn view_window<'a>(
             ..Default::default()
         });
 
+    let command_rgb = command_text_color.unwrap_or([220, 220, 220]);
+    let command_swatch = container(Space::new())
+        .width(28)
+        .height(22)
+        .style(move |theme: &Theme| container::Style {
+            background: Some(Background::Color(iced::Color::from_rgb8(
+                command_rgb[0],
+                command_rgb[1],
+                command_rgb[2],
+            ))),
+            border: Border {
+                color: theme.palette().background.strong.color,
+                width: 1.0,
+                radius: 3.0.into(),
+            },
+            ..Default::default()
+        });
+
     let snap_rgb = snap_marker_color.unwrap_or([255, 230, 26]);
     let snap_swatch = container(Space::new())
         .width(28)
@@ -803,6 +826,18 @@ pub fn view_window<'a>(
             .spacing(10)
             .align_y(iced::Center),
         )
+        .push(Space::new().height(10))
+        .push(
+            row![
+                text(crate::t!("Command line text color")).size(12).width(140),
+                command_swatch,
+                text_input(crate::t!("#RRGGBB or blank").as_ref(), command_text_color_input)
+                    .on_input(Message::CommandTextColorChanged)
+                    .width(150),
+            ]
+            .spacing(10)
+            .align_y(iced::Center),
+        )
         .push(Space::new().height(6))
         .push(
             text(crate::t!("Leave the color blank to keep automatic viewport contrast."))
@@ -1700,6 +1735,8 @@ pub fn view_window<'a>(
         folder_row(crate::t!("Plugins"), folders.plugins.clone()),
         Space::new().height(12),
         folder_row(crate::t!("Autosave files"), folders.autosave.clone()),
+        Space::new().height(12),
+        folder_row(crate::t!("Fonts"), folders.fonts.clone()),
         Space::new().height(16),
         text(crate::t!("Default template for new drawings")).size(12),
         Space::new().height(4),