diff --git a/app/src/main/assets/defaultData/coverRuleConfig.json b/app/src/main/assets/defaultData/coverRule.json
similarity index 100%
rename from app/src/main/assets/defaultData/coverRuleConfig.json
rename to app/src/main/assets/defaultData/coverRule.json
diff --git a/app/src/main/java/io/legado/app/constant/AppConst.kt b/app/src/main/java/io/legado/app/constant/AppConst.kt
index be8cd07e5..f6aa88f5f 100644
--- a/app/src/main/java/io/legado/app/constant/AppConst.kt
+++ b/app/src/main/java/io/legado/app/constant/AppConst.kt
@@ -3,6 +3,7 @@ package io.legado.app.constant
 import android.annotation.SuppressLint
 import android.content.pm.PackageManager
 import android.provider.Settings
+import com.android.tools.r8.Keep
 import com.script.javascript.RhinoScriptEngine
 import io.legado.app.BuildConfig
 import splitties.init.appCtx
@@ -87,6 +88,7 @@ object AppConst {
     val charsets =
         arrayListOf("UTF-8", "GB2312", "GB18030", "GBK", "Unicode", "UTF-16", "UTF-16LE", "ASCII")
 
+    @Keep
     data class AppInfo(
         var versionCode: Long = 0L,
         var versionName: String = ""
diff --git a/app/src/main/java/io/legado/app/data/entities/BaseSource.kt b/app/src/main/java/io/legado/app/data/entities/BaseSource.kt
index f73d2977e..0e35087c3 100644
--- a/app/src/main/java/io/legado/app/data/entities/BaseSource.kt
+++ b/app/src/main/java/io/legado/app/data/entities/BaseSource.kt
@@ -1,8 +1,7 @@
 package io.legado.app.data.entities
 
-import android.util.Base64
-import com.script.SimpleBindings
 import cn.hutool.crypto.symmetric.AES
+import com.script.SimpleBindings
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppLog
 import io.legado.app.data.entities.rule.RowUi
diff --git a/app/src/main/java/io/legado/app/help/DefaultData.kt b/app/src/main/java/io/legado/app/help/DefaultData.kt
index 7aae0536e..749123f06 100644
--- a/app/src/main/java/io/legado/app/help/DefaultData.kt
+++ b/app/src/main/java/io/legado/app/help/DefaultData.kt
@@ -60,12 +60,12 @@ object DefaultData {
         RssSource.fromJsonArray(json).getOrDefault(emptyList())
     }
 
-    val coverRuleConfig: BookCover.CoverRuleConfig by lazy {
+    val coverRule: BookCover.CoverRule by lazy {
         val json = String(
-            appCtx.assets.open("defaultData${File.separator}coverRuleConfig.json")
+            appCtx.assets.open("defaultData${File.separator}coverRule.json")
                 .readBytes()
         )
-        GSON.fromJsonObject<BookCover.CoverRuleConfig>(json).getOrThrow()!!
+        GSON.fromJsonObject<BookCover.CoverRule>(json).getOrThrow()!!
     }
 
     val keyboardAssists: List<KeyboardAssist> by lazy {
diff --git a/app/src/main/java/io/legado/app/model/BookCover.kt b/app/src/main/java/io/legado/app/model/BookCover.kt
index bf042e569..ce2e7b91d 100644
--- a/app/src/main/java/io/legado/app/model/BookCover.kt
+++ b/app/src/main/java/io/legado/app/model/BookCover.kt
@@ -4,6 +4,7 @@ import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.drawable.BitmapDrawable
 import android.graphics.drawable.Drawable
+import com.android.tools.r8.Keep
 import com.bumptech.glide.RequestBuilder
 import com.bumptech.glide.load.resource.bitmap.CenterCrop
 import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions
@@ -23,6 +24,7 @@ import io.legado.app.model.analyzeRule.AnalyzeUrl
 import io.legado.app.utils.*
 import splitties.init.appCtx
 
+@Keep
 object BookCover {
 
     private const val coverRuleConfigKey = "legadoCoverRuleConfig"
@@ -32,12 +34,6 @@ object BookCover {
         private set
     lateinit var defaultDrawable: Drawable
         private set
-    val coverRuleConfig: CoverRuleConfig
-        get() {
-            return GSON.fromJsonObject<CoverRuleConfig>(CacheManager.get(coverRuleConfigKey))
-                .getOrNull()
-                ?: DefaultData.coverRuleConfig
-        }
 
 
     init {
@@ -117,8 +113,14 @@ object BookCover {
             .thumbnail(loadBlur)
     }
 
+    fun getCoverRule(): CoverRule {
+        return GSON.fromJsonObject<CoverRule>(CacheManager.get(coverRuleConfigKey))
+            .getOrNull()
+            ?: DefaultData.coverRule
+    }
+
     suspend fun searchCover(book: Book): String? {
-        val config = coverRuleConfig
+        val config = getCoverRule()
         if (!config.enable || config.searchUrl.isBlank() || config.coverRule.isBlank()) {
             return null
         }
@@ -135,16 +137,17 @@ object BookCover {
         return analyzeRule.getString(config.coverRule, isUrl = true)
     }
 
-    fun saveCoverRuleConfig(config: CoverRuleConfig) {
+    fun saveCoverRule(config: CoverRule) {
         val json = GSON.toJson(config)
         CacheManager.put(coverRuleConfigKey, json)
     }
 
-    fun delCoverRuleConfig() {
+    fun delCoverRule() {
         CacheManager.delete(coverRuleConfigKey)
     }
 
-    data class CoverRuleConfig(
+    @Keep
+    data class CoverRule(
         var enable: Boolean = true,
         var searchUrl: String,
         var coverRule: String,
diff --git a/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt b/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt
index 154af3f3c..063a63cc5 100644
--- a/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt
@@ -2,7 +2,6 @@ package io.legado.app.ui.book.audio
 
 import android.annotation.SuppressLint
 import android.app.Activity
-import android.graphics.Color
 import android.icu.text.SimpleDateFormat
 import android.os.Build
 import android.os.Bundle
@@ -79,7 +78,7 @@ class AudioPlayActivity :
         }
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        binding.titleBar.setBackgroundColor(Color.argb(60, 0, 0, 0))
+        binding.titleBar.setBackgroundResource(R.color.transparent)
         AudioPlay.titleData.observe(this) {
             binding.titleBar.title = it
         }
diff --git a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
index a9598f9fb..258cc9675 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
@@ -2,7 +2,6 @@ package io.legado.app.ui.book.info
 
 import android.annotation.SuppressLint
 import android.content.Intent
-import android.graphics.Color
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -102,7 +101,7 @@ class BookInfoActivity :
 
     @SuppressLint("PrivateResource")
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        binding.titleBar.setBackgroundColor(Color.argb(60, 0, 0, 0))
+        binding.titleBar.setBackgroundResource(R.color.transparent)
         binding.arcView.setBgColor(backgroundColor)
         binding.llInfo.setBackgroundColor(backgroundColor)
         binding.scrollView.setBackgroundColor(backgroundColor)
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextChapter.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextChapter.kt
index 50d254e58..77759eb26 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextChapter.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextChapter.kt
@@ -1,10 +1,12 @@
 package io.legado.app.ui.book.read.page.entities
 
+import com.android.tools.r8.Keep
 import kotlin.math.min
 
 /**
  * 章节信息
  */
+@Keep
 @Suppress("unused")
 data class TextChapter(
     val position: Int,
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt
index 11a3cf970..004de6ab7 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextLine.kt
@@ -1,6 +1,7 @@
 package io.legado.app.ui.book.read.page.entities
 
 import android.text.TextPaint
+import com.android.tools.r8.Keep
 import io.legado.app.ui.book.read.page.entities.column.BaseColumn
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 import io.legado.app.utils.textHeight
@@ -8,6 +9,7 @@ import io.legado.app.utils.textHeight
 /**
  * 行信息
  */
+@Keep
 @Suppress("unused", "MemberVisibilityCanBePrivate")
 data class TextLine(
     var text: String = "",
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPage.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPage.kt
index 346e651cd..318cad235 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPage.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPage.kt
@@ -2,6 +2,7 @@ package io.legado.app.ui.book.read.page.entities
 
 import android.text.Layout
 import android.text.StaticLayout
+import com.android.tools.r8.Keep
 import io.legado.app.R
 import io.legado.app.help.config.ReadBookConfig
 import io.legado.app.model.ReadBook
@@ -15,6 +16,7 @@ import kotlin.math.min
 /**
  * 页面信息
  */
+@Keep
 @Suppress("unused", "MemberVisibilityCanBePrivate")
 data class TextPage(
     var index: Int = 0,
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPos.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPos.kt
index eac680cda..841be4cd0 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPos.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPos.kt
@@ -1,8 +1,12 @@
 package io.legado.app.ui.book.read.page.entities
 
+import com.android.tools.r8.Keep
+
 /**
  * 位置信息
  */
+@Keep
+@Suppress("unused")
 data class TextPos(
     var relativePagePos: Int,
     var lineIndex: Int,
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ButtonColumn.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ButtonColumn.kt
index 33f4f0f88..f4ef14a74 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ButtonColumn.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ButtonColumn.kt
@@ -1,9 +1,12 @@
 package io.legado.app.ui.book.read.page.entities.column
 
+import com.android.tools.r8.Keep
+
 
 /**
  * 按钮列
  */
+@Keep
 data class ButtonColumn(
     override var start: Float,
     override var end: Float
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ImageColumn.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ImageColumn.kt
index 80b38a538..b4c91921e 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ImageColumn.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ImageColumn.kt
@@ -1,8 +1,11 @@
 package io.legado.app.ui.book.read.page.entities.column
 
+import com.android.tools.r8.Keep
+
 /**
  * 图片列
  */
+@Keep
 data class ImageColumn(
     override var start: Float,
     override var end: Float,
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ReviewColumn.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ReviewColumn.kt
index 7bb8e51c9..5b035d20a 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ReviewColumn.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/ReviewColumn.kt
@@ -3,11 +3,13 @@ package io.legado.app.ui.book.read.page.entities.column
 import android.graphics.Canvas
 import android.graphics.Paint
 import android.graphics.Path
+import com.android.tools.r8.Keep
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 
 /**
  * 评论按钮列
  */
+@Keep
 data class ReviewColumn(
     override var start: Float,
     override var end: Float,
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextColumn.kt b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextColumn.kt
index 0733c3b95..b30f8e970 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextColumn.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextColumn.kt
@@ -1,8 +1,11 @@
 package io.legado.app.ui.book.read.page.entities.column
 
+import com.android.tools.r8.Keep
+
 /**
  * 文字列
  */
+@Keep
 data class TextColumn(
     override var start: Float,
     override var end: Float,
diff --git a/app/src/main/java/io/legado/app/ui/config/CoverRuleConfigDialog.kt b/app/src/main/java/io/legado/app/ui/config/CoverRuleConfigDialog.kt
index 34bd34c68..21aaa071c 100644
--- a/app/src/main/java/io/legado/app/ui/config/CoverRuleConfigDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/config/CoverRuleConfigDialog.kt
@@ -1,15 +1,21 @@
 package io.legado.app.ui.config
 
 import android.os.Bundle
+import android.util.Log
 import android.view.View
 import android.view.ViewGroup
 import io.legado.app.R
 import io.legado.app.base.BaseDialogFragment
 import io.legado.app.databinding.DialogCoverRuleConfigBinding
+import io.legado.app.lib.theme.primaryColor
 import io.legado.app.model.BookCover
+import io.legado.app.utils.GSON
 import io.legado.app.utils.setLayout
 import io.legado.app.utils.toastOnUi
 import io.legado.app.utils.viewbindingdelegate.viewBinding
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import splitties.views.onClick
 
 class CoverRuleConfigDialog : BaseDialogFragment(R.layout.dialog_cover_rule_config) {
@@ -22,9 +28,8 @@ class CoverRuleConfigDialog : BaseDialogFragment(R.layout.dialog_cover_rule_conf
     }
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
-        binding.cbEnable.isChecked = BookCover.coverRuleConfig.enable
-        binding.editSearchUrl.setText(BookCover.coverRuleConfig.searchUrl)
-        binding.editCoverUrlRule.setText(BookCover.coverRuleConfig.coverRule)
+        binding.toolBar.setBackgroundColor(primaryColor)
+        initData()
         binding.tvCancel.onClick {
             dismissAllowingStateLoss()
         }
@@ -35,16 +40,28 @@ class CoverRuleConfigDialog : BaseDialogFragment(R.layout.dialog_cover_rule_conf
             if (searchUrl.isNullOrBlank() || coverRule.isNullOrBlank()) {
                 toastOnUi("搜索url和cover规则不能为空")
             } else {
-                BookCover.CoverRuleConfig(enable, searchUrl, coverRule).let { config ->
-                    BookCover.saveCoverRuleConfig(config)
+                BookCover.CoverRule(enable, searchUrl, coverRule).let { config ->
+                    BookCover.saveCoverRule(config)
                 }
                 dismissAllowingStateLoss()
             }
         }
         binding.tvFooterLeft.onClick {
-            BookCover.delCoverRuleConfig()
+            BookCover.delCoverRule()
             dismissAllowingStateLoss()
         }
     }
 
+    private fun initData() {
+        launch {
+            val rule = withContext(IO) {
+                BookCover.getCoverRule()
+            }
+            Log.e("coverRule", GSON.toJson(rule))
+            binding.cbEnable.isChecked = rule.enable
+            binding.editSearchUrl.setText(rule.searchUrl)
+            binding.editCoverUrlRule.setText(rule.coverRule)
+        }
+    }
+
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_cover_rule_config.xml b/app/src/main/res/layout/dialog_cover_rule_config.xml
index 9d8082502..e09153226 100644
--- a/app/src/main/res/layout/dialog_cover_rule_config.xml
+++ b/app/src/main/res/layout/dialog_cover_rule_config.xml
@@ -85,12 +85,13 @@
             android:layout_height="wrap_content"
             android:orientation="horizontal">
 
-            <io.legado.app.ui.widget.text.AccentTextView
+            <TextView
                 android:id="@+id/tv_cancel"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:padding="12dp"
                 android:text="@string/cancel"
+                android:textColor="@color/secondaryText"
                 tools:ignore="RtlHardcoded" />
 
             <io.legado.app.ui.widget.text.AccentTextView