diff --git a/.changelog/lang_zh-Hans.json b/.changelog/lang_zh-Hans.json
index b2482641..315fd3e7 100644
--- a/.changelog/lang_zh-Hans.json
+++ b/.changelog/lang_zh-Hans.json
@@ -27,6 +27,7 @@
         "应用内页面导航栏设置为透明或半透明以增强视觉体验",
         "UI 模式状态栏及导航栏默认为 `md_grey_50` 色值且设置为亮色模式",
         "长按应用主页 \"文件\" 标签可切换浮动按钮可见状态",
+        "代码编辑器标题文字支持字体大小自适应",
         "日志页面浮动按钮可见状态与列表滚动操作联动",
         "脚本项目配置文件 project.json 支持更多打包选项 _[`issue #305`](http://issues.autojs6.com/305)_ _[`issue #306`](http://issues.autojs6.com/306)_",
         "脚本项目配置文件 project.json 支持选项名称宽松匹配及别名兼容",
diff --git a/app/src/main/java/org/autojs/autojs/ui/edit/EditActivity.kt b/app/src/main/java/org/autojs/autojs/ui/edit/EditActivity.kt
index c47d0e20..52f11b11 100644
--- a/app/src/main/java/org/autojs/autojs/ui/edit/EditActivity.kt
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/EditActivity.kt
@@ -6,10 +6,16 @@ import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.text.Layout
+import android.text.StaticLayout
+import android.text.TextPaint
 import android.util.Log
+import android.util.TypedValue
 import android.view.ActionMode
 import android.view.Menu
 import android.view.MenuItem
+import android.view.ViewTreeObserver
+import android.widget.TextView
 import androidx.appcompat.widget.Toolbar
 import com.afollestad.materialdialogs.MaterialDialog
 import io.reactivex.Observable
@@ -22,10 +28,11 @@ import org.autojs.autojs.core.permission.PermissionRequestProxyActivity
 import org.autojs.autojs.core.permission.RequestPermissionCallbacks
 import org.autojs.autojs.pio.PFiles
 import org.autojs.autojs.storage.file.TmpScriptFiles
+import org.autojs.autojs.theme.widget.ThemeColorToolbar
 import org.autojs.autojs.ui.BaseActivity
 import org.autojs.autojs.ui.main.MainActivity
 import org.autojs.autojs.util.Observers
-import org.autojs.autojs.util.ViewUtils
+import org.autojs.autojs.util.ViewUtils.setMenuIconsColorByThemeColorLuminance
 import org.autojs.autojs6.R
 import org.autojs.autojs6.databinding.ActivityEditBinding
 import java.io.File
@@ -37,7 +44,7 @@ import java.io.IOException
  */
 open class EditActivity : BaseActivity(), DelegateHost, PermissionRequestProxyActivity {
 
-    private var mToolbar: Toolbar? = null
+    private var mToolbar: ThemeColorToolbar? = null
     private val mMediator = OnActivityResultDelegate.Mediator()
 
     private lateinit var mEditorView: EditorView
@@ -51,7 +58,9 @@ open class EditActivity : BaseActivity(), DelegateHost, PermissionRequestProxyAc
         super.onCreate(savedInstanceState)
 
         val binding = ActivityEditBinding.inflate(layoutInflater).also { setContentView(it.root) }
-        mToolbar = findViewById(R.id.toolbar)
+        mToolbar = findViewById<ThemeColorToolbar>(R.id.toolbar).apply {
+            setTitleTextAppearance(this@EditActivity, R.style.TextAppearanceEditorTitle)
+        }
         mEditorView = binding.editorView.apply {
             handleIntent(intent)
                 .observeOn(AndroidSchedulers.mainThread())
@@ -62,12 +71,97 @@ open class EditActivity : BaseActivity(), DelegateHost, PermissionRequestProxyAc
         setUpToolbar()
     }
 
-    override fun onWindowStartingActionMode(callback: ActionMode.Callback): ActionMode? {
-        return super.onWindowStartingActionMode(callback)
-    }
+    // @Created by JetBrains AI Assistant on Mar 24, 2025.
+    private fun adjustTitleTextView(textView: TextView) {
+        textView.post {
+            // 可用宽度, 排除内边距
+            val availableWidth = textView.width - textView.paddingLeft - textView.paddingRight
+            if (availableWidth <= 0) return@post
 
-    override fun onWindowStartingActionMode(callback: ActionMode.Callback, type: Int): ActionMode? {
-        return super.onWindowStartingActionMode(callback, type)
+            val textStr = textView.text.toString()
+            val isNonAscii = textStr.any { it.code >= 0x80 }
+            val paint: TextPaint = textView.paint
+            val originTextSizePx = textView.textSize
+            val step = resources.getDimension(R.dimen.editor_title_text_size_step)
+
+            /* ---------- 尝试一行显示 (单行) ---------- */
+
+            textView.isSingleLine = true
+            textView.maxLines = 1
+
+            var oneLineTextSizePx = originTextSizePx
+            val minOneLineSizePx = resources.getDimension(R.dimen.editor_title_min_text_size_single_line)
+
+            // 测量一行文字宽度
+            paint.textSize = oneLineTextSizePx
+            var measuredWidth = paint.measureText(textStr)
+            // 当文字宽度超出可用宽度并且字号还高于下限的时候逐步降低字号
+            while (measuredWidth > availableWidth && oneLineTextSizePx > minOneLineSizePx) {
+                oneLineTextSizePx -= step
+                paint.textSize = oneLineTextSizePx
+                measuredWidth = paint.measureText(textStr)
+            }
+
+            // 如果一行能够显示文字, 则直接应用修改
+            if (measuredWidth <= availableWidth) {
+                textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, oneLineTextSizePx)
+                return@post
+            }
+
+            /* ---------- 切换为两行显示 ---------- */
+
+            textView.isSingleLine = false
+            textView.maxLines = 2
+
+            // 重置字号
+            var twoLineTextSize = when (isNonAscii) {
+                true -> resources.getDimension(R.dimen.editor_title_text_size_double_line_non_ascii)
+                else -> resources.getDimension(R.dimen.editor_title_text_size_double_line_ascii)
+            }
+
+            val minTwoLineSize = resources.getDimension(R.dimen.editor_title_min_text_size_double_line)
+            paint.textSize = twoLineTextSize
+
+            // 检查两行显示是否足够: 利用 StaticLayout 测量文字显示效果
+            fun createStaticLayout(textSize: Float): StaticLayout {
+                paint.textSize = textSize
+                return StaticLayout.Builder
+                    .obtain(textStr, 0, textStr.length, paint, availableWidth)
+                    .setAlignment(Layout.Alignment.ALIGN_NORMAL)
+                    .setLineSpacing(0f, 1f)
+                    .build()
+            }
+
+            var layout = createStaticLayout(twoLineTextSize)
+            // 当行数超出了两行且字号尚未到达最低要求, 则逐步降低字号
+            while (layout.lineCount > 2 && twoLineTextSize > minTwoLineSize) {
+                twoLineTextSize -= step
+                layout = createStaticLayout(twoLineTextSize)
+            }
+            if (layout.lineCount <= 2) {
+                textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, twoLineTextSize)
+                return@post
+            }
+
+            /* ---------- 切换为三行显示 ---------- */
+
+            textView.maxLines = 3
+
+            var threeLineSize = when (isNonAscii) {
+                true -> resources.getDimension(R.dimen.editor_title_text_size_triple_line_non_ascii)
+                else -> resources.getDimension(R.dimen.editor_title_text_size_triple_line_ascii)
+            }
+
+            val minThreeLineSize = resources.getDimension(R.dimen.editor_title_min_text_size_triple_line)
+
+            paint.textSize = threeLineSize
+            layout = createStaticLayout(threeLineSize)
+            while (layout.lineCount > 3 && threeLineSize > minThreeLineSize) {
+                threeLineSize -= step
+                layout = createStaticLayout(threeLineSize)
+            }
+            textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, threeLineSize)
+        }
     }
 
     private fun onLoadFileError(message: String?) {
@@ -86,7 +180,18 @@ open class EditActivity : BaseActivity(), DelegateHost, PermissionRequestProxyAc
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         menuInflater.inflate(R.menu.menu_editor, menu)
-        ViewUtils.setToolbarMenuIconsColorByThemeColorLuminance(this, mToolbar)
+        mToolbar?.let { toolbar ->
+            toolbar.setMenuIconsColorByThemeColorLuminance(this)
+            toolbar.viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlobalLayoutListener {
+                override fun onGlobalLayout() {
+                    val titleView = toolbar.findViewById(com.google.android.material.R.id.action_bar_title) ?: run {
+                        Toolbar::class.java.getDeclaredField("mTitleTextView").apply { isAccessible = true }.get(toolbar) as TextView?
+                    }
+                    titleView?.let { adjustTitleTextView(it) }
+                    toolbar.viewTreeObserver.removeOnGlobalLayoutListener(this)
+                }
+            })
+        }
         return true
     }
 
@@ -94,16 +199,6 @@ open class EditActivity : BaseActivity(), DelegateHost, PermissionRequestProxyAc
         return mEditorMenu.onOptionsItemSelected(item)
     }
 
-    override fun onPrepareOptionsMenu(menu: Menu): Boolean {
-        Log.d(LOG_TAG, "onPrepareOptionsMenu: $menu")
-
-        // val isScriptRunning = mEditorView.scriptExecutionId != ScriptExecution.NO_ID
-        // val forceStopItem = menu.findItem(R.id.action_force_stop)
-        // forceStopItem.isEnabled = isScriptRunning
-
-        return super.onPrepareOptionsMenu(menu)
-    }
-
     override fun onActionModeStarted(mode: ActionMode) {
         Log.d(LOG_TAG, "onActionModeStarted: $mode")
 
diff --git a/app/src/main/res/layout/activity_log.xml b/app/src/main/res/layout/activity_log.xml
index 4323f5ac..6aba33f3 100644
--- a/app/src/main/res/layout/activity_log.xml
+++ b/app/src/main/res/layout/activity_log.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
diff --git a/app/src/main/res/layout/fragment_debug_toolbar.xml b/app/src/main/res/layout/fragment_debug_toolbar.xml
index fc775a0f..3e7a5b91 100644
--- a/app/src/main/res/layout/fragment_debug_toolbar.xml
+++ b/app/src/main/res/layout/fragment_debug_toolbar.xml
@@ -1,44 +1,45 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:layout_width="wrap_content"
-              android:layout_height="match_parent"
-              android:layout_gravity="end"
-              android:orientation="horizontal">
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_height="?attr/actionBarSize"
+    android:layout_gravity="end"
+    android:orientation="horizontal">
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/step_over"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_debug_step_over"
-        app:text="@string/text_debug_step_over"/>
+        app:text="@string/text_debug_step_over" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/step_into"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_debug_step_into"
-        app:text="@string/text_debug_step_into"/>
+        app:text="@string/text_debug_step_into" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/step_out"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_debug_step_out"
-        app:text="@string/text_debug_step_out"/>
+        app:text="@string/text_debug_step_out" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/resume"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_play_arrow_white_48dp"
-        app:text="@string/text_debug_resume_script"/>
+        app:text="@string/text_debug_resume_script" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/force_stop"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_close_white_48dp"
-        app:text="@string/text_stop"/>
+        app:text="@string/text_stop" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_normal_toolbar.xml b/app/src/main/res/layout/fragment_normal_toolbar.xml
index 1b181b74..48ef6ca0 100644
--- a/app/src/main/res/layout/fragment_normal_toolbar.xml
+++ b/app/src/main/res/layout/fragment_normal_toolbar.xml
@@ -1,38 +1,39 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:app="http://schemas.android.com/apk/res-auto"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="end"
-        android:orientation="horizontal">
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_height="?attr/actionBarSize"
+    android:layout_gravity="end"
+    android:orientation="horizontal">
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
-            android:id="@+id/run"
-            android:layout_width="40dp"
-            android:layout_height="match_parent"
-            app:icon="@drawable/ic_play_arrow_white_48dp"
-            app:text="@string/text_run_simplified" />
+        android:id="@+id/run"
+        android:layout_width="@dimen/toolbar_menu_item_width"
+        android:layout_height="match_parent"
+        app:icon="@drawable/ic_play_arrow_white_48dp"
+        app:text="@string/text_run_simplified" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
-            android:id="@+id/undo"
-            android:layout_width="40dp"
-            android:layout_height="match_parent"
-            app:icon="@drawable/ic_undo_white_48dp"
-            app:text="@string/text_undo_simplified" />
+        android:id="@+id/undo"
+        android:layout_width="@dimen/toolbar_menu_item_width"
+        android:layout_height="match_parent"
+        app:icon="@drawable/ic_undo_white_48dp"
+        app:text="@string/text_undo_simplified" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
-            android:id="@+id/redo"
-            android:layout_width="40dp"
-            android:layout_height="match_parent"
-            app:icon="@drawable/ic_redo_white_48dp"
-            app:text="@string/text_redo_simplified" />
+        android:id="@+id/redo"
+        android:layout_width="@dimen/toolbar_menu_item_width"
+        android:layout_height="match_parent"
+        app:icon="@drawable/ic_redo_white_48dp"
+        app:text="@string/text_redo_simplified" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
-            android:id="@+id/save"
-            android:layout_width="40dp"
-            android:layout_height="match_parent"
-            android:enabled="false"
-            app:icon="@drawable/ic_save_white_48dp"
-            app:text="@string/text_save_simplified" />
+        android:id="@+id/save"
+        android:layout_width="@dimen/toolbar_menu_item_width"
+        android:layout_height="match_parent"
+        android:enabled="false"
+        app:icon="@drawable/ic_save_white_48dp"
+        app:text="@string/text_save_simplified" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_search_toolbar.xml b/app/src/main/res/layout/fragment_search_toolbar.xml
index aa860566..1c1e0f70 100644
--- a/app/src/main/res/layout/fragment_search_toolbar.xml
+++ b/app/src/main/res/layout/fragment_search_toolbar.xml
@@ -1,37 +1,38 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:layout_width="wrap_content"
-              android:layout_height="match_parent"
-              android:layout_gravity="end"
-              android:orientation="horizontal">
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_height="?attr/actionBarSize"
+    android:layout_gravity="end"
+    android:orientation="horizontal">
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/replace"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_ali_replace"
-        app:text="@string/text_replace_simplified"/>
+        app:text="@string/text_replace_simplified" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/find_prev"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_ali_up"
-        app:text="@string/text_find_prev_simplified"/>
+        app:text="@string/text_find_prev_simplified" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/find_next"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_ali_down"
-        app:text="@string/text_find_next_simplified"/>
+        app:text="@string/text_find_next_simplified" />
 
     <org.autojs.autojs.ui.widget.ToolbarMenuItem
         android:id="@+id/cancel_search"
-        android:layout_width="40dp"
+        android:layout_width="@dimen/toolbar_menu_item_width"
         android:layout_height="match_parent"
         app:icon="@drawable/ic_close_white_48dp"
-        app:text="@string/text_cancel_simplified"/>
+        app:text="@string/text_cancel_simplified" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/toolbar_menu_item.xml b/app/src/main/res/layout/toolbar_menu_item.xml
index 5e895c00..f3910e28 100644
--- a/app/src/main/res/layout/toolbar_menu_item.xml
+++ b/app/src/main/res/layout/toolbar_menu_item.xml
@@ -1,29 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:tools="http://schemas.android.com/tools"
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:background="?selectableItemBackgroundBorderless"
-        android:orientation="vertical">
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="@dimen/toolbar_menu_item_width"
+    android:layout_height="?attr/actionBarSize"
+    android:gravity="center"
+    android:layout_gravity="center"
+    android:background="?selectableItemBackgroundBorderless"
+    android:orientation="vertical">
 
     <ImageView
-            android:id="@+id/icon"
-            android:layout_width="match_parent"
-            android:layout_height="?android:attr/actionBarSize"
-            android:paddingBottom="20dp"
-            android:paddingTop="10dp"
-            tools:src="@drawable/autojs6_material" />
+        android:id="@+id/icon"
+        android:layout_width="match_parent"
+        android:layout_height="?android:attr/actionBarSize"
+        android:paddingBottom="23dp"
+        android:paddingTop="5dp"
+        tools:src="@drawable/autojs6_material" />
 
     <TextView
-            android:id="@+id/text"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="-20dp"
-            android:gravity="center"
-            android:maxLines="1"
-            android:ellipsize="end"
-            android:textSize="12sp"
-            tools:textColor="@color/day_night"
-            tools:text="@string/text_sample_string" />
+        android:id="@+id/text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="-23dp"
+        android:gravity="center"
+        android:maxLines="1"
+        android:ellipsize="end"
+        android:textSize="12sp"
+        tools:textColor="@color/day_night"
+        tools:text="@string/text_sample_string" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 1df020ae..4c9acf17 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -23,7 +23,15 @@
     <dimen name="snackbar_padding_horizontal">12dp</dimen>
     <dimen name="snackbar_padding_vertical">14dp</dimen>
     <dimen name="snackbar_text_size">14sp</dimen>
-    <dimen name="editor_title_text_size">18sp</dimen>
+    <dimen name="editor_title_text_size">19sp</dimen>
+    <dimen name="editor_title_text_size_double_line_ascii">19sp</dimen>
+    <dimen name="editor_title_text_size_double_line_non_ascii">16sp</dimen>
+    <dimen name="editor_title_text_size_triple_line_ascii">13sp</dimen>
+    <dimen name="editor_title_text_size_triple_line_non_ascii">11sp</dimen>
+    <dimen name="editor_title_min_text_size_single_line">16sp</dimen>
+    <dimen name="editor_title_min_text_size_double_line">13sp</dimen>
+    <dimen name="editor_title_min_text_size_triple_line">11sp</dimen>
+    <dimen name="editor_title_text_size_step">1sp</dimen>
     <dimen name="main_title_text_size">20sp</dimen>
     <dimen name="textSize_item_property">14sp</dimen>
     <dimen name="first_char_view_stroke_width">2dp</dimen>
@@ -51,5 +59,6 @@
     <dimen name="ref_md_listitem_vertical_margin">12dp</dimen>
     <dimen name="ref_md_listitem_textsize">16sp</dimen>
     <dimen name="ref_md_listitem_height">48dp</dimen>
+    <dimen name="toolbar_menu_item_width">40dp</dimen>
 
 </resources>