diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/settings/habit/HabitSettingsPage.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/settings/habit/HabitSettingsPage.kt
index 65b325ae..5da6a2a0 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/page/settings/habit/HabitSettingsPage.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/page/settings/habit/HabitSettingsPage.kt
@@ -7,6 +7,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.BrandingWatermark
 import androidx.compose.material.icons.outlined.CalendarViewDay
 import androidx.compose.material.icons.outlined.ExitToApp
+import androidx.compose.material.icons.outlined.NightsStay
 import androidx.compose.material.icons.outlined.PhotoSizeSelectActual
 import androidx.compose.material.icons.outlined.SecurityUpdateWarning
 import androidx.compose.material.icons.outlined.StarOutline
@@ -104,6 +105,22 @@ fun HabitSettingsPage(
                     },
                 )
             }
+            prefsItem {
+                SwitchPref(
+                    key = "imageDarkenWhenNightMode",
+                    title = stringResource(id = R.string.settings_image_darken_when_night_mode),
+                    defaultChecked = true,
+                    leadingIcon = {
+                        LeadingIcon {
+                            AvatarIcon(
+                                icon = Icons.Outlined.NightsStay,
+                                size = Sizes.Small,
+                                contentDescription = null,
+                            )
+                        }
+                    },
+                )
+            }
             prefsItem {
                 ListPref(
                     key = "default_sort_type",
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/Images.kt b/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/Images.kt
index f0e6c37b..4161d070 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/Images.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/ui/widgets/compose/Images.kt
@@ -11,6 +11,8 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.ColorFilter
+import androidx.compose.ui.graphics.ColorMatrix
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import com.github.panpf.sketch.compose.AsyncImage
@@ -23,6 +25,7 @@ import com.huanchengfly.tieba.post.ui.page.photoview.PhotoViewActivity
 import com.huanchengfly.tieba.post.ui.page.photoview.PhotoViewActivity.Companion.EXTRA_PHOTO_VIEW_DATA
 import com.huanchengfly.tieba.post.utils.ImageUtil
 import com.huanchengfly.tieba.post.utils.NetworkUtil
+import com.huanchengfly.tieba.post.utils.ThemeUtil
 import com.huanchengfly.tieba.post.utils.appPreferences
 
 fun shouldLoadImage(context: Context, skipNetworkCheck: Boolean): Boolean {
@@ -71,11 +74,27 @@ fun NetworkImage(
         }
     }
 
+    val currentTheme by remember { ThemeUtil.themeState }
+    val isNightMode = remember(currentTheme) { ThemeUtil.isNightMode(currentTheme) }
+    val colorFilter = if (isNightMode && context.appPreferences.imageDarkenWhenNightMode) {
+        ColorFilter.colorMatrix(
+            ColorMatrix(
+                floatArrayOf(
+                    1f, 0f, 0f, 0f, -35f,
+                    0f, 1f, 0f, 0f, -35f,
+                    0f, 0f, 1f, 0f, -35f,
+                    0f, 0f, 0f, 1f, 0f
+                )
+            )
+        )
+    } else null
+
     AsyncImage(
         request = request,
         contentDescription = contentDescription,
         modifier = modifier.then(clickableModifier),
         contentScale = contentScale,
+        colorFilter = colorFilter,
     )
 }
 
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/utils/AppPreferencesUtils.kt b/app/src/main/java/com/huanchengfly/tieba/post/utils/AppPreferencesUtils.kt
index 4de63ed1..da1b0fa5 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/utils/AppPreferencesUtils.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/utils/AppPreferencesUtils.kt
@@ -115,6 +115,8 @@ open class AppPreferencesUtils private constructor(ctx: Context) {
 
     var homePageScroll by DataStoreDelegates.boolean(defaultValue = false)
 
+    var imageDarkenWhenNightMode by DataStoreDelegates.boolean(defaultValue = true)
+
     var imageLoadType by DataStoreDelegates.string(
         key = "image_load_type",
         defaultValue = "0"
@@ -132,15 +134,13 @@ open class AppPreferencesUtils private constructor(ctx: Context) {
 
     var oldTheme by DataStoreDelegates.string(key = "old_theme")
 
-    var oksignWorkId by DataStoreDelegates.string()
-
     var oksignSlowMode by DataStoreDelegates.boolean(
         defaultValue = true,
         key = "oksign_slow_mode"
     )
 
     var oksignUseOfficialOksign by DataStoreDelegates.boolean(
-        defaultValue = false,
+        defaultValue = true,
         key = "oksign_use_official_oksign"
     )
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f3ac4cbb..bffccb7b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -724,4 +724,5 @@
     <string name="button_clear_all">清除全部</string>
     <string name="title_dynamic_theme">动态取色</string>
     <string name="desc_night_theme">夜间主题</string>
+    <string name="settings_image_darken_when_night_mode">夜间模式压暗缩略图</string>
 </resources>