diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4002e8496d..f5ae827eb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ The format is simplified version of [Keep a Changelog](https://keepachangelog.co
 - Sync DoH provider list with upstream (added Mullvad, Control D, Njalla, and Shecan)
 - Added option to enable verbose logging
 - Added category hopper long-press action to open random series from **any** category
+- Added option to enable reader debug mode
+- Added option to adjust reader's hardware bitmap threshold (@AntsyLich)
 
 ### Changes
 - Enable 'Split Tall Images' by default (@Smol-Ame)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/controllers/SettingsAdvancedController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/controllers/SettingsAdvancedController.kt
index 3b33a53a36..97f12ffc58 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/controllers/SettingsAdvancedController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/controllers/SettingsAdvancedController.kt
@@ -401,7 +401,15 @@ class SettingsAdvancedController : SettingsLegacyController() {
                 titleRes = MR.strings.pref_hardware_bitmap_threshold
 
                 val entryMap = GLUtil.CUSTOM_TEXTURE_LIMIT_OPTIONS
-                    .associateWith { it.toString() }
+                    .mapIndexed { index, option ->
+                        val display = if (index == 0) {
+                            context.getString(MR.strings.pref_hardware_bitmap_threshold_default, option)
+                        } else {
+                            option.toString()
+                        }
+                        option to display
+                    }
+                    .toMap()
                     .toImmutableMap()
                 entries = entryMap.values.toList()
                 entryValues = entryMap.keys.toList()
@@ -409,7 +417,7 @@ class SettingsAdvancedController : SettingsLegacyController() {
                 isVisible = GLUtil.DEVICE_TEXTURE_LIMIT > GLUtil.SAFE_TEXTURE_LIMIT
 
                 basePreferences.hardwareBitmapThreshold().changesIn(viewScope) { threshold ->
-                    summary = context.getString(MR.strings.pref_hardware_bitmap_threshold_summary, threshold)
+                    summary = context.getString(MR.strings.pref_hardware_bitmap_threshold_summary, entryMap[threshold].orEmpty())
                 }
             }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/util/system/GLUtil.kt b/app/src/main/java/eu/kanade/tachiyomi/util/system/GLUtil.kt
index a3a3ac6216..edd01ac370 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/util/system/GLUtil.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/util/system/GLUtil.kt
@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.util.system
 import javax.microedition.khronos.egl.EGL10
 import javax.microedition.khronos.egl.EGLConfig
 import javax.microedition.khronos.egl.EGLContext
+import kotlin.math.max
 
 object GLUtil {
     val DEVICE_TEXTURE_LIMIT: Int by lazy {
@@ -38,18 +39,21 @@ object GLUtil {
         egl.eglTerminate(display)
 
         // Return largest texture size found (after making it a multiplier of [Multiplier]), or default
-        if (maximumTextureSize > SAFE_TEXTURE_LIMIT) {
-            (maximumTextureSize / MULTIPLIER) * MULTIPLIER
-        } else {
-            SAFE_TEXTURE_LIMIT
-        }
+        max(maximumTextureSize, SAFE_TEXTURE_LIMIT)
     }
 
     const val SAFE_TEXTURE_LIMIT: Int = 2048
 
     val CUSTOM_TEXTURE_LIMIT_OPTIONS: List<Int> by lazy {
-        val steps = ((DEVICE_TEXTURE_LIMIT / MULTIPLIER) - 1)
-        List(steps) { (it + 2) * MULTIPLIER }.asReversed()
+        val steps = DEVICE_TEXTURE_LIMIT / MULTIPLIER
+        buildList(steps) {
+            add(DEVICE_TEXTURE_LIMIT)
+            for (step in steps downTo 2) {
+                val value = step * MULTIPLIER
+                if (value >= DEVICE_TEXTURE_LIMIT) continue
+                add(value)
+            }
+        }
     }
 }
 
diff --git a/i18n/src/commonMain/moko-resources/base/strings.xml b/i18n/src/commonMain/moko-resources/base/strings.xml
index a74e0d3b3a..1ac8fdb86f 100644
--- a/i18n/src/commonMain/moko-resources/base/strings.xml
+++ b/i18n/src/commonMain/moko-resources/base/strings.xml
@@ -514,6 +514,7 @@
     <string name="pref_lowest">Lowest</string>
     <string name="pref_display_profile">Custom display profile</string>
     <string name="pref_hardware_bitmap_threshold">Custom hardware bitmap threshold</string>
+    <string name="pref_hardware_bitmap_threshold_default">Default (%d)</string>
     <string name="pref_hardware_bitmap_threshold_summary">If reader loads a blank image incrementally reduce the threshold.\nSelected: %s</string>
     <string name="pref_double_tap_zoom">Double tap to zoom</string>