diff --git a/app/src/main/res/drawable/v_cookie_brown_x256.xml b/app/src/main/res/drawable/v_cookie_brown_x256.xml
deleted file mode 100644
index d55112871..000000000
--- a/app/src/main/res/drawable/v_cookie_brown_x256.xml
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?><!--
-  ~ Copyright 2016 Hippo Seven
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="256dp"
-    android:height="256dp"
-    android:tint="@color/brown_500"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@android:color/white"
-        android:pathData="@string/pd_cookie" />
-
-</vector>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index f5c62cae0..b7de28a87 100755
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -386,8 +386,6 @@
     <string name="settings_eh_show_tag_translations_summary">显示翻译后的标签而非原始文字（需花费时间来下载数据文件）</string>
     <string name="settings_eh_tag_translations_source">补充翻译（由 EhTagTranslation 提供）</string>
     <string name="settings_eh_tag_translations_source_url">https://github.com/EhTagTranslation/Editor/wiki</string>
-    <string name="settings_eh_preview_num">画廊详情页预览图最大数量</string>
-    <string name="settings_eh_preview_num_summary">由于历史因素，此值过大会导致卡顿</string>
     <string name="settings_eh_filter">屏蔽列表</string>
     <string name="settings_eh_filter_summary">根据标题、上传者、标签、评论者屏蔽画廊或评论</string>
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7fa9b8eb8..5d53ddebd 100755
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -431,8 +431,6 @@
     <string name="settings_eh_show_tag_translations_summary">Show tag translations instead of the original text (It takes time to download the data file)</string>
     <string name="settings_eh_tag_translations_source">Placeholder</string>
     <string name="settings_eh_tag_translations_source_url">https://placeholder</string>
-    <string name="settings_eh_preview_num">The maximum number of previews on the gallery details page</string>
-    <string name="settings_eh_preview_num_summary">For historical reasons, large value could cause lag</string>
     <string name="settings_eh_filter">Blockers</string>
     <string name="settings_eh_filter_summary">Block gallery or comment by title, uploader, tags and commenter</string>