diff --git a/.example.env b/.example.env
index dbe9294..77a5f36 100644
--- a/.example.env
+++ b/.example.env
@@ -1,4 +1,5 @@
 APP_DEBUG=true
+COVER_THEME=index
 
 [APP]
 DEFAULT_TIMEZONE=Asia/Shanghai
diff --git a/app/admin/view/layout/default.html b/app/admin/view/layout/default.html
index 7ef56ae..1046928 100644
--- a/app/admin/view/layout/default.html
+++ b/app/admin/view/layout/default.html
@@ -12,6 +12,9 @@
     <script src="https://cdn.staticfile.org/respond.js/1.4.2/respond.min.js"></script>
     <![endif]-->
     <link rel="stylesheet" href="__STATIC__/admin/css/public.css?v={$version}" media="all">
+
+    <link rel="stylesheet" href="__STATIC__/common/css/theme/{:env('COVER_THEME','index')}.css?v={$version}">
+
     <script>
         window.CONFIG = {
             ADMIN: "{$adminModuleName|default='admin'}",
diff --git a/public/static/common/css/theme/demo.css b/public/static/common/css/theme/demo.css
new file mode 100644
index 0000000..20dea8d
--- /dev/null
+++ b/public/static/common/css/theme/demo.css
@@ -0,0 +1,61 @@
+.layui-btn {
+    color           : #808185 !important;
+    background-color: #cde7ff !important;
+    border          : 1px solid #d3dde6 !important;
+}
+
+.layui-layer-easy .layui-layer-title {
+    background-color: rgb(215, 215, 215) !important;
+    color           : #6C6E71 !important;
+}
+
+.layui-layer-easy .layui-layer-setwin>a::after {
+    color: #6C6E71 !important;
+}
+
+.layui-layer-easy .layui-layer-btn .layui-layer-btn0 {
+    color           : #808185 !important;
+    background-color: #cde7ff !important;
+    border          : 1px solid #d3dde6 !important;
+}
+
+.layuimini-tab .layui-tab-title .layuimini-tab-active {
+    display: none !important;
+}
+
+.layuimini-tab .layui-tab-title li {
+    padding     : 0 5px !important;
+    font-size   : 12px;
+    border-width: 1px 1px 1px 0 !important;
+    border-style: solid !important;
+
+}
+
+.layuimini-tab .layui-tab-title li.layui-this {
+    color       : #fff !important;
+    border-color: rgba(0, 0, 255, 1) !important;
+    background  : rgba(90, 173, 255, 1) !important;
+}
+
+.layuimini-tab .layui-tab-title .layui-this span {
+    color: #fff !important;
+}
+
+body .layuimini-tab>.layui-tab-title li,
+body .layuimini-tab>.close-box li {
+    line-height: 27px !important;
+}
+
+body .layuimini-tab>.layui-tab-title,
+body .layuimini-tab>.close-box {
+    height: 28px !important;
+}
+
+body .layuimini-tab .layui-tab-control>li {
+    height     : 28px !important;
+    line-height: 28px !important;
+}
+
+body .layuimini-container .layui-laypage .layui-laypage-curr .layui-laypage-em {
+    background-color: #6C6E71 !important;
+}
\ No newline at end of file
diff --git a/public/static/common/css/theme/index.css b/public/static/common/css/theme/index.css
new file mode 100644
index 0000000..e69de29
diff --git a/public/static/plugs/lay-module/layuimini/miniTheme.js b/public/static/plugs/lay-module/layuimini/miniTheme.js
index 6a67353..123602c 100644
--- a/public/static/plugs/lay-module/layuimini/miniTheme.js
+++ b/public/static/plugs/lay-module/layuimini/miniTheme.js
@@ -256,7 +256,27 @@ define(["jquery"], function ($) {
                     leftMenuColor: 'rgb(191, 187, 187)', //左侧菜单字体颜色,
                     leftMenuColorThis: '#ffffff', //左侧菜单选中字体颜色,
                     tabActiveColor: '#963885', //tab选项卡选中颜色,
-                }
+                },
+                {
+                    headerRightBg: '#ffffff', //头部右侧背景色
+                    headerRightBgThis: '#e4e4e4', //头部右侧选中背景色,
+                    headerRightColor: 'rgba(0,0,0, 0.7)', //头部右侧字体颜色,
+                    headerRightChildColor: 'rgba(0,0,0, 0.7)', //头部右侧下拉字体颜色,
+                    headerRightColorThis: '#000', //头部右侧鼠标选中,
+                    headerRightNavMore: 'rgba(160, 160, 160, 0.7)', //头部右侧更多下拉颜色,
+                    headerRightNavMoreBg: '#1E9FFF', //头部右侧更多下拉列表选中背景色,
+                    headerRightNavMoreColor: '#ffffff', //头部右侧更多下拉列表字体色,
+                    headerRightToolColor: '#000', //头部缩放按钮样式,
+                    headerLogoBg: '#f3f3f3', //logo背景颜色,
+                    headerLogoColor: '#000', //logo字体颜色,
+                    leftMenuNavMore: 'rgb(191, 187, 187)', //左侧菜单更多下拉样式,
+                    leftMenuBg: '#ffffff', //左侧菜单背景,
+                    leftMenuBgThis: '#bbb', //左侧菜单选中背景,
+                    leftMenuChildBg: '#f3f3f3', //左侧菜单子菜单背景,
+                    leftMenuColor: '#000', //左侧菜单字体颜色,
+                    leftMenuColorThis: '#000', //左侧菜单选中字体颜色,
+                    tabActiveColor: '#1e9fff', //tab选项卡选中颜色,
+                },
             ];
             if (bgcolorId === undefined) {
                 return bgColorConfig;
@@ -430,9 +450,9 @@ define(["jquery"], function ($) {
                     '<ul>\n' + bgColorHtml + '</ul>\n' +
                     '</div>\n' +
                     '<div class="more-menu-list">\n' +
-                    '<a class="more-menu-item" href="http://easyadmin.99php.cn/docs/index.html" target="_blank"><i class="layui-icon layui-icon-read" style="font-size: 19px;"></i> 开发文档</a>\n' +
-                    '<a class="more-menu-item" href="https://github.com/zhongshaofa/easyadmin" target="_blank"><i class="layui-icon layui-icon-tabs" style="font-size: 16px;"></i> 开源地址</a>\n' +
-                    '<a class="more-menu-item" href="http://easyadmin.99php.cn" target="_blank"><i class="layui-icon layui-icon-theme"></i> 官方网站</a>\n' +
+                    '<a class="more-menu-item" href="http://doc.ulthon.com/home/read/ulthon_admin/home.html" target="_blank"><i class="layui-icon layui-icon-read" style="font-size: 19px;"></i> 开发文档</a>\n' +
+                    '<a class="more-menu-item" href="https://gitee.com/ulthon/ulthon_admin" target="_blank"><i class="layui-icon layui-icon-tabs" style="font-size: 16px;"></i> 开源地址</a>\n' +
+                    '<a class="more-menu-item" href="http://admin.demo.ulthon.com/" target="_blank"><i class="layui-icon layui-icon-theme"></i> 官方网站</a>\n' +
                     '</div>' +
                     '</div>';
                 layer.open({