use enum of font size

src/CrossPointSettings.cpp

@@ -214,3 +214,18 @@ int CrossPointSettings::getReaderFontId() const {
       }
   }
 }
+
+int CrossPointSettings::getReaderScreenMargin() const {
+  switch (screenMargin) {
+    case SMALL:
+      return 5;
+    case MEDIUM:
+      return 10;
+    case LARGE:
+      return 20;
+    case EXTRA_LARGE:
+      return 40;
+    default:
+      return 5;
+  }
+}

src/CrossPointSettings.h

@@ -51,9 +51,6 @@ class CrossPointSettings {
   // E-ink refresh frequency (pages between full refreshes)
   enum REFRESH_FREQUENCY { REFRESH_1 = 0, REFRESH_5 = 1, REFRESH_10 = 2, REFRESH_15 = 3, REFRESH_30 = 4 };
 
-  // Reader screen margin options
-  enum SCREEN_MARGIN { S = 5, M = 10, L = 20, XL = 30 };
-
 
   // Sleep screen settings
   uint8_t sleepScreen = DARK;
@@ -80,7 +77,7 @@ class CrossPointSettings {
   uint8_t refreshFrequency = REFRESH_15;
 
   // Reader screen margin settings
-  uint8_t screenMargin = M;
+  uint8_t screenMargin = SMALL;
 
   ~CrossPointSettings() = default;
 
@@ -96,6 +93,8 @@ class CrossPointSettings {
   float getReaderLineCompression() const;
   unsigned long getSleepTimeoutMs() const;
   int getRefreshFrequency() const;
+  int getReaderScreenMargin() const;
+
 };
 
 // Helper macro to access settings

src/activities/reader/EpubReaderActivity.cpp

@@ -16,8 +16,6 @@ namespace {
 // pagesPerRefresh now comes from SETTINGS.getRefreshFrequency()
 constexpr unsigned long skipChapterMs = 700;
 constexpr unsigned long goHomeMs = 1000;
-constexpr int topPadding = 5;
-constexpr int horizontalPadding = 5;
 constexpr int statusBarMargin = 19;
 }  // namespace
 
@@ -253,9 +251,9 @@ void EpubReaderActivity::renderScreen() {
   int orientedMarginTop, orientedMarginRight, orientedMarginBottom, orientedMarginLeft;
   renderer.getOrientedViewableTRBL(&orientedMarginTop, &orientedMarginRight, &orientedMarginBottom,
                                    &orientedMarginLeft);
-  orientedMarginTop += SETTINGS.screenMargin;
-  orientedMarginLeft += SETTINGS.screenMargin;
-  orientedMarginRight += SETTINGS.screenMargin;
+  orientedMarginTop += SETTINGS.getReaderScreenMargin();
+  orientedMarginLeft += SETTINGS.getReaderScreenMargin();
+  orientedMarginRight += SETTINGS.getReaderScreenMargin();
   orientedMarginBottom += statusBarMargin;
 
   if (!section) {

src/activities/settings/SettingsActivity.cpp

@@ -34,7 +34,7 @@ const SettingInfo settingsList[settingsCount] = {
      {"Bookerly", "Noto Sans", "Open Dyslexic"}},
     {"Reader Font Size", SettingType::ENUM, &CrossPointSettings::fontSize, {"Small", "Medium", "Large", "X Large"}},
     {"Reader Line Spacing", SettingType::ENUM, &CrossPointSettings::lineSpacing, {"Tight", "Normal", "Wide"}},
-    {"Reader Screen Margin", SettingType::ENUM, &CrossPointSettings::screenMargin, {"S", "M", "L", "XL"}},
+    {"Reader Screen Margin", SettingType::ENUM, &CrossPointSettings::screenMargin, {"5", "10", "20", "40"}},
     {"Reader Paragraph Alignment",
      SettingType::ENUM,
      &CrossPointSettings::paragraphAlignment,