diff --git a/function/heroku.php b/function/heroku.php
index 98fed15..c8d34c5 100644
--- a/function/heroku.php
+++ b/function/heroku.php
@@ -4,6 +4,7 @@ $commonEnv = [
     //'APIKey',
     //'admin',
     'adminloginpage',
+    'background',
     //'disktag',
     //'function_name',
     'language',
diff --git a/function/normal.php b/function/normal.php
index dd7c0c2..ed97656 100644
--- a/function/normal.php
+++ b/function/normal.php
@@ -3,6 +3,7 @@
 $commonEnv = [
     //'admin',
     'adminloginpage',
+    'background',
     //'disktag',
     'language',
     'passfile',
diff --git a/function/scf.php b/function/scf.php
index d9d84af..02d6e7a 100644
--- a/function/scf.php
+++ b/function/scf.php
@@ -6,6 +6,7 @@ $commonEnv = [
     //'SecretKey',
     //'admin',
     'adminloginpage',
+    'background',
     //'disktag',
     'language',
     'passfile',
diff --git a/theme/classic.php b/theme/classic.php
index dc1f044..d5f8534 100644
--- a/theme/classic.php
+++ b/theme/classic.php
@@ -10,7 +10,7 @@
     <link rel="icon" href="<?php echo $_SERVER['base_disk_path'];?>favicon.ico" type="image/x-icon" />
     <link rel="shortcut icon" href="<?php echo $_SERVER['base_disk_path'];?>favicon.ico" type="image/x-icon" />
     <style type="text/css">
-        body{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;font-size:14px;line-height:1em;background-color:#f7f7f9;color:#000}
+        body{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;font-size:14px;line-height:1em;color:#000;background-color:#f7f7f9;background-image:url("<?php echo getConfig('background')?getConfig('background'):($_SERVER['base_disk_path'].'background.jpg'); ?>");background-repeat:no-repeat;background-attachment:fixed}
         a{color:#24292e;cursor:pointer;text-decoration:none}
         a:hover{color:#24292e}
         .login ion-icon{vertical-align:bottom}
@@ -22,14 +22,14 @@
         .list-header-container{position:relative}
         .list-header-container a.back-link{color:#000;display:inline-block;position:absolute;font-size:16px;margin:20px 10px;padding:10px 10px;vertical-align:middle;text-decoration:none}
         .list-container,.list-header-container,.list-wrapper,a.back-link:hover,body{color:#24292e}
-        .list-header-container .table-header{margin:0;border:0 none;padding:30px 60px;text-align:left;font-weight:400;color:#000;background-color:#f7f7f9;word-break: break-all;word-wrap: break-word;}
-        .list-body-container{position:relative;left:0;overflow-x:hidden;overflow-y:auto;box-sizing:border-box;background:#fff}
-        .more-disk{margin:0;border:0 none;padding:30px 30px;text-align:left;font-weight:400;color:#000;background-color:#f7f7f9;word-break: break-all;word-wrap: break-word;}
+        .list-header-container .table-header{margin:0;border:0 none;padding:30px 60px;text-align:left;font-weight:400;color:#000;background-color:rgba(245,245,245,0.5);word-break: break-all;word-wrap: break-word;}
+        .list-body-container{position:relative;left:0;overflow-x:hidden;overflow-y:auto;box-sizing:border-box;background:rgba(245,245,245,0.5)}
+        .more-disk{margin:0;border:0 none;padding:30px 30px;text-align:left;font-weight:400;color:#000;background-color:rgba(245,245,245,0.5);word-break: break-all;word-wrap: break-word;}
         .more-disk a{padding:5px}
         .list-table{width:100%;padding:0 20px 20px 20px;border-spacing:0}
         .list-table tr{height:40px}
-        .list-table tr[data-to]:hover{background:#f1f1f1}
-        .list-table tr:first-child{background:#fff}
+        .list-table tr[data-to]:hover{background:rgba(85,85,85,0.7)}
+        .list-table tr:first-child{background:rgba(245,245,245,0)}
         .list-table td,.list-table th{padding:0 10px;text-align:left}
         .list-table .size,.list-table .updated_at{text-align:right}
         .list-table .file ion-icon{font-size:15px;/*margin-right:5px;*/vertical-align:bottom}
@@ -45,7 +45,7 @@
         .operatediv{position:absolute;border:1px #CCCCCC;background-color:#FFFFCC;z-index:2;}
         .operatediv div{margin:16px}
         .operatediv_close{position:absolute;right:3px;top:3px;}
-        .readme{padding:8px;background-color:#fff;}
+        .readme{padding:8px;background-color:rgba(245,245,245,0.5);}
         .markdown-body{padding:20px;text-align:left}
         @media only screen and (max-width:480px){
             .title{margin-bottom:24px}
@@ -357,8 +357,8 @@
         <div class="list-container">
             <div class="list-header-container">
                 <div class="readme">
-                    <svg class="octicon octicon-book" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3 5h4v1H3V5zm0 3h4V7H3v1zm0 2h4V9H3v1zm11-5h-4v1h4V5zm0 2h-4v1h4V7zm0 2h-4v1h4V9zm2-6v9c0 .55-.45 1-1 1H9.5l-1 1-1-1H2c-.55 0-1-.45-1-1V3c0-.55.45-1 1-1h5.5l1 1 1-1H15c.55 0 1 .45 1 1zm-8 .5L7.5 3H2v9h6V3.5zm7-.5H9.5l-.5.5V12h6V3z"></path></svg>
-                    <span style="line-height: 16px;vertical-align: top;">'.$head['name'].'</span>
+                    <!--<svg class="octicon octicon-book" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3 5h4v1H3V5zm0 3h4V7H3v1zm0 2h4V9H3v1zm11-5h-4v1h4V5zm0 2h-4v1h4V7zm0 2h-4v1h4V9zm2-6v9c0 .55-.45 1-1 1H9.5l-1 1-1-1H2c-.55 0-1-.45-1-1V3c0-.55.45-1 1-1h5.5l1 1 1-1H15c.55 0 1 .45 1 1zm-8 .5L7.5 3H2v9h6V3.5zm7-.5H9.5l-.5.5V12h6V3z"></path></svg>
+                    <span style="line-height: 16px;vertical-align: top;">'.$head['name'].'</span>-->
                     <div class="markdown-body" id="head">
                         <textarea id="head-md" style="display:none;">' . curl_request(fetch_files(spurlencode(path_format($path . '/' .$head['name']),'/'))['@microsoft.graph.downloadUrl'])['body'] . '
                         </textarea>
@@ -375,8 +375,8 @@
         <div class="list-container">
             <div class="list-header-container">
                 <div class="readme">
-                    <svg class="octicon octicon-book" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3 5h4v1H3V5zm0 3h4V7H3v1zm0 2h4V9H3v1zm11-5h-4v1h4V5zm0 2h-4v1h4V7zm0 2h-4v1h4V9zm2-6v9c0 .55-.45 1-1 1H9.5l-1 1-1-1H2c-.55 0-1-.45-1-1V3c0-.55.45-1 1-1h5.5l1 1 1-1H15c.55 0 1 .45 1 1zm-8 .5L7.5 3H2v9h6V3.5zm7-.5H9.5l-.5.5V12h6V3z"></path></svg>
-                    <span style="line-height: 16px;vertical-align: top;">'.$readme['name'].'</span>
+                    <!--<svg class="octicon octicon-book" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M3 5h4v1H3V5zm0 3h4V7H3v1zm0 2h4V9H3v1zm11-5h-4v1h4V5zm0 2h-4v1h4V7zm0 2h-4v1h4V9zm2-6v9c0 .55-.45 1-1 1H9.5l-1 1-1-1H2c-.55 0-1-.45-1-1V3c0-.55.45-1 1-1h5.5l1 1 1-1H15c.55 0 1 .45 1 1zm-8 .5L7.5 3H2v9h6V3.5zm7-.5H9.5l-.5.5V12h6V3z"></path></svg>
+                    <span style="line-height: 16px;vertical-align: top;">'.$readme['name'].'</span>-->
                     <div class="markdown-body" id="readme">
                         <textarea id="readme-md" style="display:none;">' . curl_request(fetch_files(spurlencode(path_format($path . '/' .$readme['name']),'/'))['@microsoft.graph.downloadUrl'])['body'] . '
                         </textarea>
diff --git a/version b/version
index ecd3774..5dfe3c5 100644
--- a/version
+++ b/version
@@ -1,7 +1,10 @@
+20200222-2130.10
+you can set background now.
+可以设置背景图片了。
+
 20200222-1700.09
 Can copy file and folder now.
 可以复制文件跟目录了。
-
 20200220-1220.08
 Multy Mode! You can add more Onedrive in one project (bind Onedrive in setup). And now, heroku apps can update in setup!  
 多盘来了，在设置中添加Onedrive，另，heroku 上也能一键更新了！