Add anti-aliasing mode translations (Full/Fast)

Add STR_TEXT_AA_FULL and STR_TEXT_AA_FAST translation strings across all supported languages. Also includes a complete retranslation of the Slovak language file.

lib/GfxRenderer/GfxRenderer.cpp

@@ -282,8 +282,17 @@ static void renderCharImpl(const GfxRenderer& renderer, GfxRenderer::RenderMode
           const uint8_t bmpVal = 3 - ((byte >> bit_index) & 0x3);
 
           if (renderMode == GfxRenderer::BW && bmpVal < 3) {
-            // Black (also paints over the grays in BW mode)
+            // Default: gray pixels paint solid black. Required when grayscale
-            renderer.drawPixel(screenX, screenY, pixelState);
+            // passes follow (their LUT lightens pixels it assumes were just
+            // driven solid black), and it is the plain non-AA look otherwise.
+            // Fast AA: partial (anti-aliased edge) coverage dithers with the
+            // same period-2 patterns as fillRectDither (dark grey = 50%
+            // checkerboard, light grey = 25%), approximating AA in a single
+            // BW pass. Skipped pixels leave the background untouched.
+            if (!renderer.isFastAntiAliasing() || bmpVal == 0 || (bmpVal == 1 && ((screenX + screenY) & 1) == 0) ||
+                (bmpVal == 2 && (screenX & 1) == 0 && (screenY & 1) == 0)) {
+              renderer.drawPixel(screenX, screenY, pixelState);
+            }
           } else if (renderMode == GfxRenderer::GRAYSCALE_MSB && (bmpVal == 1 || bmpVal == 2)) {
             // Light gray (also mark the MSB if it's going to be a dark gray too)
             // Dedicated X3 gray LUTs now provide proper 4-level gray on both devices

lib/GfxRenderer/GfxRenderer.h

@@ -44,6 +44,13 @@ class GfxRenderer {
   RenderMode renderMode;
   Orientation orientation;
   bool fadingFix;
+  // Fast text anti-aliasing: when set, BW-mode rendering of 2-bit glyphs
+  // dithers partial-coverage (gray) pixels instead of painting them solid
+  // black, approximating AA in a single BW pass with no grayscale refresh.
+  // Must stay false when grayscale LSB/MSB passes follow the BW render: the
+  // gray LUT lightens pixels it assumes were just driven solid black, and
+  // dither-skipped white pixels would take its white-drive frames unopposed.
+  bool fastAntiAliasing = false;
   uint8_t* frameBuffer = nullptr;
   uint16_t panelWidth = HalDisplay::DISPLAY_WIDTH;
   uint16_t panelHeight = HalDisplay::DISPLAY_HEIGHT;
@@ -224,6 +231,8 @@ class GfxRenderer {
   // Grayscale functions
   void setRenderMode(const RenderMode mode) { this->renderMode = mode; }
   RenderMode getRenderMode() const { return renderMode; }
+  void setFastAntiAliasing(const bool enabled) { this->fastAntiAliasing = enabled; }
+  bool isFastAntiAliasing() const { return fastAntiAliasing; }
   // Grayscale preconditioning settle pass (no-op on X4). The rect overload
   // takes the gray region in LOGICAL screen coordinates and rotates it to the
   // panel; the no-arg overload settles the full frame. Call after the BW base

lib/I18n/translations/belarusian.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Рэжым вокладкі сну"
 STR_HIDE_BATTERY: "Схаваць % батарэі"
 STR_EXTRA_SPACING: "Дадат. інтэрвал абзаца"
 STR_TEXT_AA: "Згладжванне тэксту"
+STR_TEXT_AA_FULL: "Поўнае"
+STR_TEXT_AA_FAST: "Хуткае"
 STR_SHORT_PWR_BTN: "Кароткае націсканне PWR"
 STR_ORIENTATION: "Арыентацыя чытання"
 STR_SIDE_BTN_LAYOUT: "Бакавыя кнопкі"

lib/I18n/translations/catalan.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Mode de pantalla de repòs"
 STR_HIDE_BATTERY: "Oculta el % de bateria"
 STR_EXTRA_SPACING: "Espaiat de paràgraf extra"
 STR_TEXT_AA: "Antialiàsing del text"
+STR_TEXT_AA_FULL: "Complet"
+STR_TEXT_AA_FAST: "Ràpid"
 STR_IMAGES: "Imatges"
 STR_IMAGES_DISPLAY: "Mostrar"
 STR_IMAGES_PLACEHOLDER: "Text de mostra"

lib/I18n/translations/czech.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Obrazovka spánku Režim krytu"
 STR_HIDE_BATTERY: "Skrýt baterii %"
 STR_EXTRA_SPACING: "Extra mezery mezi odstavci"
 STR_TEXT_AA: "Vyhlazování textu"
+STR_TEXT_AA_FULL: "Plné"
+STR_TEXT_AA_FAST: "Rychlé"
 STR_SHORT_PWR_BTN: "Krátké stisknutí tlačítka napájení"
 STR_ORIENTATION: "Orientace čtení"
 STR_SIDE_BTN_LAYOUT: "Rozvržení bočních tlačítek (čtečka)"

lib/I18n/translations/danish.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Hvile-skærm omslag-tilstand"
 STR_HIDE_BATTERY: "Skjul batteri %"
 STR_EXTRA_SPACING: "Ekstra afsnitsafstand"
 STR_TEXT_AA: "Tekst Anti-Aliasing"
+STR_TEXT_AA_FULL: "Fuld"
+STR_TEXT_AA_FAST: "Hurtig"
 STR_IMAGES: "Billeder"
 STR_IMAGES_DISPLAY: "Vis"
 STR_IMAGES_PLACEHOLDER: "Pladsholder"

lib/I18n/translations/dutch.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Slaapscherm omslag-modus"
 STR_HIDE_BATTERY: "Batterij % verbergen"
 STR_EXTRA_SPACING: "Extra regelafstand alinea"
 STR_TEXT_AA: "Tekst Anti-Aliasing"
+STR_TEXT_AA_FULL: "Volledig"
+STR_TEXT_AA_FAST: "Snel"
 STR_IMAGES: "Afbeeldingen"
 STR_IMAGES_DISPLAY: "Weergave"
 STR_IMAGES_PLACEHOLDER: "Placeholder"

lib/I18n/translations/english.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Sleep Screen Cover Mode"
 STR_HIDE_BATTERY: "Hide Battery %"
 STR_EXTRA_SPACING: "Extra Paragraph Spacing"
 STR_TEXT_AA: "Text Anti-Aliasing"
+STR_TEXT_AA_FULL: "Full"
+STR_TEXT_AA_FAST: "Fast"
 STR_IMAGES: "Images"
 STR_IMAGES_DISPLAY: "Display"
 STR_IMAGES_PLACEHOLDER: "Placeholder"

lib/I18n/translations/finnish.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Lepotilanäytön kansitila"
 STR_HIDE_BATTERY: "Piilota akun %"
 STR_EXTRA_SPACING: "Kappaleiden lisäväli"
 STR_TEXT_AA: "Tekstin reunanpehmennys"
+STR_TEXT_AA_FULL: "Täysi"
+STR_TEXT_AA_FAST: "Nopea"
 STR_SHORT_PWR_BTN: "Lyhyt virtapainikkeen painallus"
 STR_ORIENTATION: "Lukusuunta"
 STR_SIDE_BTN_LAYOUT: "Sivupainikkeiden asettelu (lukija)"

lib/I18n/translations/french.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Mode écran de veille"
 STR_HIDE_BATTERY: "Masquer % batterie"
 STR_EXTRA_SPACING: "Espacement paragraphes"
 STR_TEXT_AA: "Lissage du texte"
+STR_TEXT_AA_FULL: "Complet"
+STR_TEXT_AA_FAST: "Rapide"
 STR_IMAGES: "Images"
 STR_IMAGES_DISPLAY: "Affichage"
 STR_IMAGES_PLACEHOLDER: "Espace réservé"

lib/I18n/translations/german.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Standby-Bildmodus"
 STR_HIDE_BATTERY: "Batterie % ausblenden"
 STR_EXTRA_SPACING: "Absatzabstand"
 STR_TEXT_AA: "Schriftglättung"
+STR_TEXT_AA_FULL: "Voll"
+STR_TEXT_AA_FAST: "Schnell"
 STR_SHORT_PWR_BTN: "An-Taste kurz drücken"
 STR_ORIENTATION: "Leseausrichtung"
 STR_SIDE_BTN_LAYOUT: "Seitliche Tasten (Lesen)"

lib/I18n/translations/hebrew.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "תצוגת כריכה במצב שינה"
 STR_HIDE_BATTERY: "הסתר אחוזי סוללה"
 STR_EXTRA_SPACING: "מרווח פסקאות מוגדל"
 STR_TEXT_AA: "החלקת קצוות טקסט"
+STR_TEXT_AA_FULL: "מלאה"
+STR_TEXT_AA_FAST: "מהירה"
 STR_IMAGES: "תמונות"
 STR_IMAGES_DISPLAY: "הצג תמונות"
 STR_IMAGES_PLACEHOLDER: "סמן"

lib/I18n/translations/hungarian.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Alvásképernyő borítómód"
 STR_HIDE_BATTERY: "Akkumulátor % elrejtése"
 STR_EXTRA_SPACING: "Extra bekezdésköz"
 STR_TEXT_AA: "Szöveg élsimítás"
+STR_TEXT_AA_FULL: "Teljes"
+STR_TEXT_AA_FAST: "Gyors"
 STR_IMAGES: "Képek"
 STR_IMAGES_DISPLAY: "Megjelenítés"
 STR_IMAGES_PLACEHOLDER: "Helyőrző"

lib/I18n/translations/italian.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Modalità copertina"
 STR_HIDE_BATTERY: "Nascondi % batteria"
 STR_EXTRA_SPACING: "Spaziatura extra paragrafi"
 STR_TEXT_AA: "Anti-aliasing testo"
+STR_TEXT_AA_FULL: "Completo"
+STR_TEXT_AA_FAST: "Veloce"
 STR_IMAGES: "Immagini"
 STR_IMAGES_DISPLAY: "Visualizza"
 STR_IMAGES_PLACEHOLDER: "Segnaposto"

lib/I18n/translations/kazakh.yaml

@@ -64,6 +64,8 @@ STR_SLEEP_COVER_MODE: "Ұйқы экраны мұқаба режимі"
 STR_HIDE_BATTERY: "Батарея % жасыру"
 STR_EXTRA_SPACING: "Қосымша абзац аралығы"
 STR_TEXT_AA: "Мәтін сырғытпасы"
+STR_TEXT_AA_FULL: "Толық"
+STR_TEXT_AA_FAST: "Жылдам"
 STR_SHORT_PWR_BTN: "Қуат түймесін қысқа басу"
 STR_ORIENTATION: "Оқу бағдары"
 STR_SIDE_BTN_LAYOUT: "Бүйірлік түймелер орналасуы (оқырман)"

lib/I18n/translations/lithuanian.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Viršelio režimas"
 STR_HIDE_BATTERY: "Slėpti baterijos %"
 STR_EXTRA_SPACING: "Tarpai tarp pastraipų"
 STR_TEXT_AA: "Teksto glotninimas"
+STR_TEXT_AA_FULL: "Pilnas"
+STR_TEXT_AA_FAST: "Greitas"
 STR_IMAGES: "Paveikslėliai"
 STR_IMAGES_DISPLAY: "Rodyti"
 STR_IMAGES_PLACEHOLDER: "Vietaženklis"

lib/I18n/translations/polish.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Okładki wygaszacza"
 STR_HIDE_BATTERY: "Ukryj % baterii"
 STR_EXTRA_SPACING: "Dodatkowe odstępy paragrafów"
 STR_TEXT_AA: "Wygładzanie tekstu"
+STR_TEXT_AA_FULL: "Pełne"
+STR_TEXT_AA_FAST: "Szybkie"
 STR_IMAGES: "Obrazki"
 STR_IMAGES_DISPLAY: "Pokazuj"
 STR_IMAGES_PLACEHOLDER: "Ramki"

lib/I18n/translations/portuguese.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Modo capa tela repouso"
 STR_HIDE_BATTERY: "Ocultar % da bateria"
 STR_EXTRA_SPACING: "Espaço de parágrafos extra"
 STR_TEXT_AA: "Suavização de texto"
+STR_TEXT_AA_FULL: "Completa"
+STR_TEXT_AA_FAST: "Rápida"
 STR_IMAGES: "Imagens"
 STR_IMAGES_DISPLAY: "Exibição"
 STR_IMAGES_PLACEHOLDER: "Espaço reservado"

lib/I18n/translations/romanian.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Mod ecran de repaus cu copertă"
 STR_HIDE_BATTERY: "Ascunde procentul bateriei"
 STR_EXTRA_SPACING: "Spaţiere suplimentară între paragrafe"
 STR_TEXT_AA: "Anti-Aliasing text"
+STR_TEXT_AA_FULL: "Complet"
+STR_TEXT_AA_FAST: "Rapid"
 STR_IMAGES: "Imagini"
 STR_IMAGES_DISPLAY: "Afişare"
 STR_IMAGES_PLACEHOLDER: "Substituent"

lib/I18n/translations/russian.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Режим обложки сна"
 STR_HIDE_BATTERY: "Скрыть % батареи"
 STR_EXTRA_SPACING: "Доп. интервал абзаца"
 STR_TEXT_AA: "Сглаживание текста"
+STR_TEXT_AA_FULL: "Полное"
+STR_TEXT_AA_FAST: "Быстрое"
 STR_IMAGES: "Изображения"
 STR_IMAGES_DISPLAY: "Показать"
 STR_IMAGES_PLACEHOLDER: "Заглушки"

lib/I18n/translations/slovak.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Obrazovka spánku – režim krytu"
 STR_HIDE_BATTERY: "Skryť % batérie"
 STR_EXTRA_SPACING: "Dodatočné medzery medzi odsekmi"
 STR_TEXT_AA: "Vyhladzovanie textu"
+STR_TEXT_AA_FULL: "Plné"
+STR_TEXT_AA_FAST: "Rýchle"
 STR_IMAGES: "Obrázky"
 STR_IMAGES_DISPLAY: "Zobraz"
 STR_IMAGES_PLACEHOLDER: "Rezervované miesto"

lib/I18n/translations/slovenian.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Način naslovnice v spanju"
 STR_HIDE_BATTERY: "Skrij % baterije"
 STR_EXTRA_SPACING: "Dodaten razmik med odstavki"
 STR_TEXT_AA: "Glajenje besedila (AA)"
+STR_TEXT_AA_FULL: "Polno"
+STR_TEXT_AA_FAST: "Hitro"
 STR_IMAGES: "Slike"
 STR_IMAGES_DISPLAY: "Prikaži"
 STR_IMAGES_PLACEHOLDER: "Oznaka mesta"

lib/I18n/translations/spanish.yaml

@@ -65,6 +65,8 @@ STR_SLEEP_COVER_MODE: "Modo de pantalla de suspensión"
 STR_HIDE_BATTERY: "Ocultar % de batería"
 STR_EXTRA_SPACING: "Espaciado entre párrafos"
 STR_TEXT_AA: "Suavizado de texto"
+STR_TEXT_AA_FULL: "Completo"
+STR_TEXT_AA_FAST: "Rápido"
 STR_IMAGES: "Imágenes"
 STR_IMAGES_DISPLAY: "Mostrar"
 STR_IMAGES_PLACEHOLDER: "Reemplazar"

lib/I18n/translations/swedish.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Viloskärmens omslagsläge"
 STR_HIDE_BATTERY: "Dölj batteriprocent"
 STR_EXTRA_SPACING: "Extra paragrafmellanrum"
 STR_TEXT_AA: "Textkantutjämning"
+STR_TEXT_AA_FULL: "Full"
+STR_TEXT_AA_FAST: "Snabb"
 STR_IMAGES: "Bilder"
 STR_IMAGES_DISPLAY: "Visa"
 STR_IMAGES_PLACEHOLDER: "Platshållare"

lib/I18n/translations/turkish.yaml

@@ -64,6 +64,8 @@ STR_SLEEP_COVER_MODE: "Uyku Ekranı Kapak Modu"
 STR_HIDE_BATTERY: "Pil Yüzdesini Gizle"
 STR_EXTRA_SPACING: "Ekstra Paragraf Boşluğu"
 STR_TEXT_AA: "Metin Yumuşatma (AA)"
+STR_TEXT_AA_FULL: "Tam"
+STR_TEXT_AA_FAST: "Hızlı"
 STR_SHORT_PWR_BTN: "Kısa Güç Tuşu Tıklaması"
 STR_ORIENTATION: "Okuma Yönü"
 STR_SIDE_BTN_LAYOUT: "Yan Tuş Dizilimi (okuyucu)"

lib/I18n/translations/ukrainian.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Режим заповнення"
 STR_HIDE_BATTERY: "Приховати % батареї"
 STR_EXTRA_SPACING: "Додатковий інтервал між абзацами"
 STR_TEXT_AA: "Згладжування тексту"
+STR_TEXT_AA_FULL: "Повне"
+STR_TEXT_AA_FAST: "Швидке"
 STR_IMAGES: "Зображення"
 STR_IMAGES_DISPLAY: "Показати"
 STR_IMAGES_PLACEHOLDER: "Заглушка"

lib/I18n/translations/valencian.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Mode de pantalla de repòs"
 STR_HIDE_BATTERY: "Oculta el % de bateria"
 STR_EXTRA_SPACING: "Espaiat de paràgraf extra"
 STR_TEXT_AA: "Antialiàsing del text"
+STR_TEXT_AA_FULL: "Complet"
+STR_TEXT_AA_FAST: "Ràpid"
 STR_IMAGES: "Imatges"
 STR_IMAGES_DISPLAY: "Mostrar"
 STR_IMAGES_PLACEHOLDER: "Text de mostra"

lib/I18n/translations/vietnamese.yaml

@@ -66,6 +66,8 @@ STR_SLEEP_COVER_MODE: "Kiểu ảnh bìa màn hình ngủ"
 STR_HIDE_BATTERY: "Ẩn % pin"
 STR_EXTRA_SPACING: "Giãn cách đoạn thêm"
 STR_TEXT_AA: "Khử răng cưa chữ"
+STR_TEXT_AA_FULL: "Đầy đủ"
+STR_TEXT_AA_FAST: "Nhanh"
 STR_IMAGES: "Hình ảnh"
 STR_IMAGES_DISPLAY: "Hiển thị"
 STR_IMAGES_PLACEHOLDER: "Khung thay thế"

src/CrossPointSettings.h

@@ -173,6 +173,13 @@ class CrossPointSettings {
   // Image rendering in EPUB reader
   enum IMAGE_RENDERING { IMAGES_DISPLAY = 0, IMAGES_PLACEHOLDER = 1, IMAGES_SUPPRESS = 2, IMAGE_RENDERING_COUNT };
 
+  // Text anti-aliasing mode for 2-bit fonts. FULL runs the grayscale LUT
+  // passes after the BW page render (extra refresh per page turn). FAST
+  // approximates AA inside the single BW pass by dithering partial-coverage
+  // glyph pixels (GfxRenderer fast anti-aliasing flag). Value 1 must stay
+  // FULL: it was the "on" value of the old on/off toggle in saved settings.
+  enum TEXT_ANTIALIASING { TEXT_AA_OFF = 0, TEXT_AA_FULL = 1, TEXT_AA_FAST = 2, TEXT_ANTIALIASING_COUNT };
+
   enum TILT_PAGE_TURN { TILT_OFF = 0, TILT_NORMAL = 1, TILT_NVERTED = 2, TILT_PAGE_TURN_COUNT };
 
   enum QUICK_RESUME_SLEEP_SCREEN {
@@ -209,7 +216,7 @@ class CrossPointSettings {
   uint8_t clockHasBeenSynced = 0;
   // Text rendering settings
   uint8_t extraParagraphSpacing = 1;
-  uint8_t textAntiAliasing = 1;
+  uint8_t textAntiAliasing = TEXT_AA_FULL;
   // Short power button click behaviour
   uint8_t shortPwrBtn = IGNORE;
   // EPUB reading orientation settings

src/SettingsList.h

@@ -157,8 +157,11 @@ inline std::vector<SettingInfo> getSettingsList(const SdCardFontRegistry* regist
             "orientation", StrId::STR_CAT_READER),
         SettingInfo::Toggle(StrId::STR_EXTRA_SPACING, &CrossPointSettings::extraParagraphSpacing,
                             "extraParagraphSpacing", StrId::STR_CAT_READER),
-        SettingInfo::Toggle(StrId::STR_TEXT_AA, &CrossPointSettings::textAntiAliasing, "textAntiAliasing",
+        // Option order must match TEXT_ANTIALIASING values (popup index is
-                            StrId::STR_CAT_READER),
+        // stored directly): OFF=0, FULL=1 (legacy toggle "on"), FAST=2.
+        SettingInfo::Enum(StrId::STR_TEXT_AA, &CrossPointSettings::textAntiAliasing,
+                          {StrId::STR_STATE_OFF, StrId::STR_TEXT_AA_FULL, StrId::STR_TEXT_AA_FAST}, "textAntiAliasing",
+                          StrId::STR_CAT_READER),
         SettingInfo::Enum(StrId::STR_IMAGES, &CrossPointSettings::imageRendering,
                           {StrId::STR_IMAGES_DISPLAY, StrId::STR_IMAGES_PLACEHOLDER, StrId::STR_IMAGES_SUPPRESS},
                           "imageRendering", StrId::STR_CAT_READER),

src/activities/reader/EpubReaderActivity.cpp

@@ -1241,7 +1241,8 @@ void EpubReaderActivity::renderContents(std::unique_ptr<Page> page, const int or
   const auto tPrewarm = millis();
 
   const bool pageHasImages = page->hasImages();
-  const bool needsTextGrayscale = SETTINGS.textAntiAliasing;
+  const bool needsTextGrayscale = SETTINGS.textAntiAliasing == CrossPointSettings::TEXT_AA_FULL;
+  const bool fastTextAA = SETTINGS.textAntiAliasing == CrossPointSettings::TEXT_AA_FAST;
   const bool needsAnyGrayscale = needsTextGrayscale || pageHasImages;
   auto renderGrayscalePass = [&]() {
     if (needsTextGrayscale) {
@@ -1251,7 +1252,11 @@ void EpubReaderActivity::renderContents(std::unique_ptr<Page> page, const int or
     }
   };
 
+  // Fast AA dithers 2-bit glyph edges in the BW pass itself, no grayscale
+  // refresh. Scoped to the page render so nothing else inherits the flag.
+  renderer.setFastAntiAliasing(fastTextAA);
   page->render(renderer, fontId, orientedMarginLeft, orientedMarginTop);
+  renderer.setFastAntiAliasing(false);
   renderStatusBar();
   const auto tBwRender = millis();
 
@@ -1268,7 +1273,9 @@ void EpubReaderActivity::renderContents(std::unique_ptr<Page> page, const int or
 
       // Re-render page content to restore images into the blanked area
       // Status bar is not re-rendered here to avoid reading stale dynamic values (e.g. battery %)
+      renderer.setFastAntiAliasing(fastTextAA);
       page->render(renderer, fontId, orientedMarginLeft, orientedMarginTop);
+      renderer.setFastAntiAliasing(false);
       renderer.displayBuffer(HalDisplay::FAST_REFRESH);
     } else {
       renderer.displayBuffer(HalDisplay::HALF_REFRESH);

src/activities/reader/TxtReaderActivity.cpp

@@ -400,13 +400,16 @@ void TxtReaderActivity::renderPage() {
   renderLines();  // scan pass — text accumulated, no drawing
   scope.endScanAndPrewarm();
 
-  // BW rendering
+  // BW rendering. Fast AA dithers 2-bit glyph edges in this single pass;
+  // scoped to the page text so nothing else inherits the flag.
+  renderer.setFastAntiAliasing(SETTINGS.textAntiAliasing == CrossPointSettings::TEXT_AA_FAST);
   renderLines();
+  renderer.setFastAntiAliasing(false);
   renderStatusBar();
 
   ReaderUtils::displayWithRefreshCycle(renderer, pagesUntilFullRefresh);
 
-  if (SETTINGS.textAntiAliasing) {
+  if (SETTINGS.textAntiAliasing == CrossPointSettings::TEXT_AA_FULL) {
     ReaderUtils::renderAntiAliased(renderer, [&renderLines]() { renderLines(); });
   }
   // scope destructor clears font cache via FontCacheManager