diff --git a/web/html/login.html b/web/html/login.html
index 77f58c6e..9acac432 100644
--- a/web/html/login.html
+++ b/web/html/login.html
@@ -373,97 +373,105 @@
   }
 </style>
 <body>
-<a-layout id="app" v-cloak :class="themeSwitcher.currentTheme">
-  <transition name="list" appear>
-    <a-layout-content class="under" style="min-height: 0;">
-      <div class="waves-header">
-        <div class="waves-inner-header"></div>
-        <svg class="waves" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
-          viewBox="0 24 150 28" preserveAspectRatio="none" shape-rendering="auto">
-          <defs>
-            <path id="gentle-wave" d="M-160 44c30 0 58-18 88-18s 58 18 88 18 58-18 88-18 58 18 88 18 v44h-352z" />
-          </defs>
-          <g class="parallax">
-            <use xlink:href="#gentle-wave" x="48" y="0" fill="rgba(0, 135, 113, 0.08)" />
-            <use xlink:href="#gentle-wave" x="48" y="3" fill="rgba(0, 135, 113, 0.08)" />
-            <use xlink:href="#gentle-wave" x="48" y="5" fill="rgba(0, 135, 113, 0.08)" />
-            <use xlink:href="#gentle-wave" x="48" y="7" fill="#c7ebe2" />
-          </g>
-        </svg>
-      </div>
-      <a-row type="flex" justify="center" align="middle" style="height: 100%; overflow: auto;">
-        <a-col :xs="22" :sm="20" :md="14" :lg="10" :xl="8" :xxl="6" id="login" style="margin: 3rem 0;">
-          <a-row type="flex" justify="center">
-            <a-col style="width: 100%;">
-              <h1 class="title headline zoom">
-                <span class="words-wrapper">
-                  <b class="is-visible">{{ i18n "pages.login.title" }}</b>
-                  <b>Hello!</b>
-                </span>
-              </h1>
-            </a-col>
-          </a-row>
-          <a-row type="flex" justify="center">
-            <a-col span="24">
-              <a-form>
-                <a-form-item>
-                  <a-input v-model.trim="user.username" placeholder='{{ i18n "username" }}'
-                    @keydown.enter.native="login" autofocus>
-                    <a-icon slot="prefix" type="user" style="font-size: 16px;" />
-                  </a-input>
-                </a-form-item>
-                <a-form-item>
-                  <password-input icon="lock" v-model.trim="user.password" placeholder='{{ i18n "password" }}'
-                    @keydown.enter.native="login">
-                  </password-input>
-                </a-form-item>
-                <a-form-item v-if="secretEnable">
-                  <password-input icon="key" v-model.trim="user.loginSecret" placeholder='{{ i18n "secretToken" }}'
-                    @keydown.enter.native="login">
-                  </password-input>
-                  </a-input>
-                </a-form-item>
-                <a-form-item>
-                  <a-row justify="center" class="centered">
-                    <div class="wave-btn-bg wave-btn-bg-cl"
-                      :style="loading ? { width: '52px' } : { display: 'inline-block' }">
-                      <a-button class="ant-btn-primary-login" type="primary" :loading="loading" @click="login"
-                        :icon="loading ? 'poweroff' : undefined">
-                        [[ loading ? '' : '{{ i18n "login" }}' ]]
-                      </a-button>
-                    </div>
-                  </a-row>
-                </a-form-item>
-                <a-form-item>
-                  <a-row justify="center" class="centered">
-                    <a-col :span="24">
-                      <a-select ref="selectLang" v-model="lang" @change="setLang(lang)" style="width: 150px;"
-                        :dropdown-class-name="themeSwitcher.currentTheme">
-                        <a-select-option :value="l.value" label="English" v-for="l in supportLangs">
-                          <span role="img" aria-label="l.name" v-text="l.icon"></span>
-                          &nbsp;&nbsp;<span v-text="l.name"></span>
-                        </a-select-option>
-                      </a-select>
-                    </a-col>
-                  </a-row>
-                </a-form-item>
-                <a-form-item>
-                  <a-row justify="center" class="centered">
-                    <a-col>
-                      <a-icon :theme="themeSwitcher.isDarkTheme ? 'filled' : 'outlined'"></a-icon>&nbsp;
-                    </a-col>
-                    <a-col>
-                      <theme-switch />
-                    </a-col>
-                  </a-row>
-                </a-form-item>
-              </a-form>
-            </a-col>
-          </a-row>
-        </a-col>
-      </a-row>
-    </a-layout-content>
-  </transition>
+  <a-layout id="app" v-cloak :class="themeSwitcher.currentTheme">
+    <transition name="list" appear>
+        <a-layout-content class="under" style="min-height: 0;">
+            <div class="waves-header">
+                <div class="waves-inner-header"></div>
+                <svg class="waves" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+                    viewBox="0 24 150 28" preserveAspectRatio="none" shape-rendering="auto">
+                    <defs>
+                        <path id="gentle-wave" d="M-160 44c30 0 58-18 88-18s 58 18 88 18 58-18 88-18 58 18 88 18 v44h-352z" />
+                    </defs>
+                    <g class="parallax">
+                        <use xlink:href="#gentle-wave" x="48" y="0" fill="rgba(0, 135, 113, 0.08)" />
+                        <use xlink:href="#gentle-wave" x="48" y="3" fill="rgba(0, 135, 113, 0.08)" />
+                        <use xlink:href="#gentle-wave" x="48" y="5" fill="rgba(0, 135, 113, 0.08)" />
+                        <use xlink:href="#gentle-wave" x="48" y="7" fill="#c7ebe2" />
+                    </g>
+                </svg>
+            </div>
+            <a-row type="flex" justify="center" align="middle" style="height: 100%; overflow: auto;">
+                <a-col :xs="22" :sm="20" :md="14" :lg="10" :xl="8" :xxl="6" id="login" style="margin: 3rem 0;">
+                    <a-row type="flex" justify="center">
+                        <a-col style="width: 100%;">
+                            <h1 class="title headline zoom">
+                                <span class="words-wrapper">
+                                    <b class="is-visible">{{ i18n "pages.login.hello" }}</b>
+                                    <b>{{ i18n "pages.login.title" }}</b>
+                                </span>
+                            </h1>
+                        </a-col>
+                    </a-row>
+                    <a-row type="flex" justify="center">
+                        <a-col span="24">
+                            <a-form>
+                                <a-form-item>
+                                    <a-input v-model.trim="user.username" placeholder='{{ i18n "username" }}'
+                                             @keydown.enter.native="login" autofocus>
+                                        <a-icon slot="prefix" type="user" style="font-size: 16px;"></a-icon>
+                                    </a-input>
+                                </a-form-item>
+                                <a-form-item>
+                                    <password-input icon="lock" v-model.trim="user.password"
+                                                    placeholder='{{ i18n "password" }}'
+                                                    @keydown.enter.native="login">
+                                    </password-input>
+                                </a-form-item>
+                                <a-form-item v-if="secretEnable">
+                                    <password-input icon="key" v-model.trim="user.loginSecret"
+                                                    placeholder='{{ i18n "secretToken" }}'
+                                                    @keydown.enter.native="login">
+                                    </password-input>
+                                </a-form-item>
+                                <a-form-item>
+                                    <a-row justify="center" class="centered">
+                                        <div style="height: 50px;" class="wave-btn-bg wave-btn-bg-cl"
+                                             :style="loading ? { width: '52px' } : { display: 'inline-block' }">
+                                            <a-button class="ant-btn-primary-login" type="primary"
+                                                      :loading="loading" @click="login"
+                                                      :icon="loading ? 'poweroff' : undefined">
+                                                      [[ loading ? '' : '{{ i18n "login" }}' ]]
+                                            </a-button>
+                                        </div>
+                                    </a-row>
+                                </a-form-item>
+                                <a-form-item>
+                                    <a-row justify="center" class="centered">
+                                        <a-col :span="24">
+                                            <a-select ref="selectLang" v-model="lang"
+                                                      @change="setLang(lang)" style="width: 150px;"
+                                                      :dropdown-class-name="themeSwitcher.currentTheme">
+                                                <a-select-option :value="l.value" label="English" v-for="l in supportLangs">
+                                                    <span role="img" aria-label="l.name" v-text="l.icon"></span>
+                                                    &nbsp;&nbsp;<span v-text="l.name"></span>
+                                                </a-select-option>
+                                            </a-select>
+                                        </a-col>
+                                    </a-row>
+                                </a-form-item>
+                                <a-form-item>
+                                    <a-row justify="center" class="centered">
+                                        <a-col>
+                                            <a-icon type="bulb" :theme="themeSwitcher.isDarkTheme ? 'filled' : 'outlined'"></a-icon>&nbsp;
+                                        </a-col>
+                                        <a-col>
+                                            <theme-switch></theme-switch>
+                                            <a-checkbox v-if="themeSwitcher.isDarkTheme" style="padding-left: 1rem; vertical-align: middle;"
+                                                        :checked="themeSwitcher.isUltra"
+                                                        @click="themeSwitcher.toggleUltra()">
+                                                        Ultra
+                                            </a-checkbox>
+                                        </a-col>
+                                    </a-row>
+                                </a-form-item>
+                            </a-form>
+                        </a-col>
+                    </a-row>
+                </a-col>
+            </a-row>
+        </a-layout-content>
+    </transition>
 </a-layout>
 {{template "js" .}}
 {{template "component/themeSwitcher" .}}
