panel/public/res/views/system/theme.html

<!-- 主题设置模板 -->

<script type="text/html" template lay-done="layui.data.theme();">
    {{#
    var local = layui.data(layui.setter.tableName)
    ,theme = local.theme || {}
    ,themeColorIndex =  parseInt((theme && theme.color) ? theme.color.index : 0) || 0;
    }}

    <div class="layui-card-header">
        配色方案
    </div>
    <div class="layui-card-body layadmin-setTheme">
        <ul class="layadmin-setTheme-color">
            {{# layui.each(layui.setter.theme.color, function(index, item){ }}
            <li layadmin-event="setTheme" data-index="{{ index }}" data-alias="{{ item.alias }}"
                {{ index=== themeColorIndex ?
            'class="layui-this"' : '' }} title="{{ item.alias }}">
            <div class="layadmin-setTheme-header" style="background-color: {{ item.header }};"></div>
            <div class="layadmin-setTheme-side" style="background-color: {{ item.main }};">
                <div class="layadmin-setTheme-logo" style="background-color: {{ item.logo }};"></div>
            </div>
            </li>
            {{# }); }}
        </ul>
    </div>
</script>

<script>
  layui.data.theme = function () {
    layui.use('form', function () {
      var form = layui.form
        , admin = layui.admin

      //隐藏开关
      form.on('switch(system-theme-sideicon)', function () {
        admin.theme({
          hideSideIcon: this.checked
        })
      })
    })
  }
</script>