diff --git a/AvocadoEdition_Light/addons/sample/sample.addon.php b/AvocadoEdition_Light/addons/sample/sample.addon.php
index d964ab9..774848b 100644
--- a/AvocadoEdition_Light/addons/sample/sample.addon.php
+++ b/AvocadoEdition_Light/addons/sample/sample.addon.php
@@ -75,6 +75,11 @@ class SampleAddon extends Addon
   </div>';
   }
 
+  public function saveAction($data = [])
+  {
+
+  }
+
   public function getConfig()
   {
     global $g5;
diff --git a/AvocadoEdition_Light/adm/addon_config.php b/AvocadoEdition_Light/adm/addon_config.php
index 1c99d29..2c1d47e 100644
--- a/AvocadoEdition_Light/adm/addon_config.php
+++ b/AvocadoEdition_Light/adm/addon_config.php
@@ -98,7 +98,7 @@ add_stylesheet(get_embed_file("css", G5_PATH . "/adm/css/addon_config.css"), 1);
         </content><?php
       }
     } else {
-      echo "애드온을 선택하세요";
+      echo "<span class=\"empty\">애드온을 선택하세요</span>";
     }
     ?>
   </section>
diff --git a/AvocadoEdition_Light/adm/addon_config_update.php b/AvocadoEdition_Light/adm/addon_config_update.php
index b8965e3..5caba88 100644
--- a/AvocadoEdition_Light/adm/addon_config_update.php
+++ b/AvocadoEdition_Light/adm/addon_config_update.php
@@ -47,6 +47,10 @@ if (array_key_exists($addon_name, AddonLoader::$addons)) {
   }
 
   sql_query($sql);
+
+  if (method_exists($addon, "saveAction")) {
+    $addon->saveAction($config_data);
+  }
 } else {
   alert("애드온이 설정되지 않았습니다.");
 }
diff --git a/AvocadoEdition_Light/adm/admin.head.php b/AvocadoEdition_Light/adm/admin.head.php
index ea975b6..4ad05bc 100644
--- a/AvocadoEdition_Light/adm/admin.head.php
+++ b/AvocadoEdition_Light/adm/admin.head.php
@@ -35,7 +35,6 @@ include_once G5_PATH . '/head.sub.php';
     <div id="admin_prof">
       <h1>
         <a href="<?php echo G5_ADMIN_URL ?>"><img src="<?= G5_ADMIN_URL ?>/img/logo.png" alt="Avocado Edition" /></a>
-        <i><?= G5_GNUBOARD_VER ?></i>
       </h1>
       <p>
         <a href="<?php echo G5_ADMIN_URL ?>/member_form.php?w=u&amp;mb_id=<?php echo $member['mb_id'] ?>" class="name">
diff --git a/AvocadoEdition_Light/adm/admin.tail.php b/AvocadoEdition_Light/adm/admin.tail.php
index 6272c4f..c33aeb0 100644
--- a/AvocadoEdition_Light/adm/admin.tail.php
+++ b/AvocadoEdition_Light/adm/admin.tail.php
@@ -2,9 +2,12 @@
 if (!defined('_GNUBOARD_'))
   exit;
 ?>
+<div class="footer-copyright">
+  <a href="https://info.drk.st/about"> Avocado Amber v<?= G5_GNUBOARD_VER ?> </a>
+</div>
 </section>
 </div>
-<!-- <p>실행시간 : <?php echo get_microtime() - $begin_time; ?> -->
+<!-- <p>실행시간 : <?php echo microtime(true) - $begin_time; ?> -->
 <script src="<?php echo G5_ADMIN_URL ?>/js/admin.js?ver=<?php echo G5_JS_VER; ?>"></script>
 <script src="<?php echo G5_ADMIN_URL ?>/js/admin.ajax.js?ver=<?php echo G5_JS_VER; ?>"></script>
 <script>
diff --git a/AvocadoEdition_Light/adm/css/addon_config.css b/AvocadoEdition_Light/adm/css/addon_config.css
index bb6d8f8..61341cb 100644
--- a/AvocadoEdition_Light/adm/css/addon_config.css
+++ b/AvocadoEdition_Light/adm/css/addon_config.css
@@ -68,3 +68,18 @@ th a+a {
 td a {
   color: var(--theme-color-d);
 }
+
+.footer-copyright {
+  padding: 20px !important;
+}
+
+span.empty {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  min-height: 200px;
+  justify-content: center;
+  align-items: center;
+  color: #A0A0A0;
+  border: 1px solid #F0F0F0;
+}
diff --git a/AvocadoEdition_Light/adm/css/admin.css b/AvocadoEdition_Light/adm/css/admin.css
index 2f5fd52..9967bb8 100644
--- a/AvocadoEdition_Light/adm/css/admin.css
+++ b/AvocadoEdition_Light/adm/css/admin.css
@@ -18,7 +18,8 @@
   --theme-color-c: #c7996b;
   --theme-color-d: hsl(30, 72%, 55%);
   --theme-color-d-gnb: hsla(30, 72%, 55%, .2);
-  --theme-color-e: hsl(30, 75%, 40%);
+  --theme-color-e: hsl(45, 100%, 50%);
+  --theme-color-sub: #4a797b;
 }
 
 /* 초기화 */
@@ -471,7 +472,7 @@ label+input {
   text-decoration: none;
   margin: 0 1px;
   color: #62656c;
-  border-radius: 9.0em;
+  border-radius: 4px;
   box-sizing: border-box;
   z-index: 1;
 }
@@ -497,8 +498,9 @@ label+input {
 #anc_014 a[href="#anc_014"],
 #anc_015 a[href="#anc_015"],
 #anc_016 a[href="#anc_016"] {
-  background: #b0c4de;
+  background: var(--theme-color-sub);
   color: #fff;
+  font-weight: bold;
 }
 
 .color-preview {
@@ -805,7 +807,7 @@ table {
 }
 
 #theme_list li .tmli_if {
-  border: 1px solid #b9cec5;
+  border: 1px solid var(--theme-color-a);
   width: 300px;
   box-sizing: border-box;
   min-height: 240px;
@@ -836,8 +838,8 @@ table {
 
 #theme_list li .tmli_tit {
   position: relative;
-  border-top: 1px solid #b9cec5;
-  background: #e0fff2;
+  border-top: 1px solid var(--theme-color-a);
+  background: var(--theme-color-0);
 }
 
 #theme_list li .tmli_tit p {
@@ -876,7 +878,7 @@ table {
 }
 
 #theme_list li .theme_sl:hover {
-  background: #ff3061
+  background: var(--theme-color-d);
 }
 
 #theme_list li .theme_deactive {
@@ -884,7 +886,7 @@ table {
 }
 
 #theme_list li .theme_sl_use {
-  background: #ff3061;
+  background: var(--theme-color-d);
   line-height: 26px
 }
 
@@ -1025,3 +1027,14 @@ table {
   content: "\F45D";
   font-size: 16px;
 }
+
+.footer-copyright {
+  padding: 20px 0;
+  font-size: 11px;
+  color: #A0A0A0;
+  text-align: center;
+}
+
+.footer-copyright a {
+  color: #A0A0A0;
+}
diff --git a/AvocadoEdition_Light/adm/css/admin.layout.css b/AvocadoEdition_Light/adm/css/admin.layout.css
index 90f24a6..24a76ba 100644
--- a/AvocadoEdition_Light/adm/css/admin.layout.css
+++ b/AvocadoEdition_Light/adm/css/admin.layout.css
@@ -284,6 +284,7 @@ body {
 
 #gnb .gnb_2dli.check {
   background: var(--theme-color-d-gnb);
+  border-left: 4px solid var(--theme-color-e);
   font-weight: bold;
 }
 
diff --git a/AvocadoEdition_Light/adm/editor_font.php b/AvocadoEdition_Light/adm/editor_font.php
index 1f03af9..4565e2f 100644
--- a/AvocadoEdition_Light/adm/editor_font.php
+++ b/AvocadoEdition_Light/adm/editor_font.php
@@ -76,9 +76,14 @@ EventHandler::triggerEvent("amber.admin.editor_font_form_before");
         </colgroup>
         <tbody>
           <tr>
-            <th scope="row"><label for="font_name">폰트 이름<strong class="sound_only">필수</strong></label></th>
-            <td><input type="text" name="font_name" value="" id="font_name" required class="required frm_input"
-                size="50"></td>
+            <th scope="row">
+              <label for="font_name">폰트 이름<strong class="sound_only">필수</strong></label>
+            </th>
+            <td>
+              <span class="frm_info">DHTML 에디터에서 출력될 폰트 이름입니다.</span>
+              <input type="text" name="font_name" value="" id="font_name" required class="required frm_input"
+                size="50">
+            </td>
           </tr>
           <tr>
             <th scope="row"><label for="font_css">@font-face CSS 또는 @import URL<strong class="sound_only">필수</strong>
@@ -87,7 +92,8 @@ EventHandler::triggerEvent("amber.admin.editor_font_form_before");
               </label></th>
             <td>
               <span class="frm_info">@font-face CSS를 그대로 붙여넣거나, Google Fonts의 @import URL을 입력하세요.</span>
-              <span class="frm_info"><strong>구글 폰트의 경우 여러 폰트가 한번에 선택되지 않도록 주의해 주시기 바랍니다.</strong></span>
+              <span class="frm_info">구글 폰트의 경우 여러 폰트가 한번에 선택되지 않도록 주의해 주시기 바랍니다.</span>
+              <span class="frm_info">구글 폰트를 사용할 경우 폰트 선택 이후 다른 폰트를 가져올 때 보관함에서 이전 폰트를 삭제하세요.</span>
               <textarea name="font_css" id="font_css" rows="8" required class="required frm_input" style="width:100%;"
                 placeholder="@font-face {
   font-family: 'FontName';
diff --git a/AvocadoEdition_Light/adm/theme.php b/AvocadoEdition_Light/adm/theme.php
index d614e3a..c260cf7 100644
--- a/AvocadoEdition_Light/adm/theme.php
+++ b/AvocadoEdition_Light/adm/theme.php
@@ -52,7 +52,7 @@ include_once "./admin.head.php";
       }
       ?>
       <li>
-        <div class="tmli_if" style="--bg:url(<?=$screenshot?>">
+        <div class="tmli_if" style="--bg:url(<?= $screenshot ?>);">
           <div class="tmli_tit">
             <p><?= get_text($info['theme_name']); ?></p>
           </div>
diff --git a/AvocadoEdition_Light/classes/addon/addon.class.php b/AvocadoEdition_Light/classes/addon/addon.class.php
index 52dcbb3..ec757a7 100644
--- a/AvocadoEdition_Light/classes/addon/addon.class.php
+++ b/AvocadoEdition_Light/classes/addon/addon.class.php
@@ -14,4 +14,9 @@ class Addon
   {
 
   }
+
+  public function saveAction($data = [])
+  {
+
+  }
 }
diff --git a/AvocadoEdition_Light/theme/basic/screenshot.png b/AvocadoEdition_Light/theme/basic/screenshot.png
new file mode 100644
index 0000000..169be22
Binary files /dev/null and b/AvocadoEdition_Light/theme/basic/screenshot.png differ