diff --git a/apps/static/img/avatar/admin.png b/apps/static/img/avatar/admin.png
index 1948d1661..8462a8a18 100644
Binary files a/apps/static/img/avatar/admin.png and b/apps/static/img/avatar/admin.png differ
diff --git a/apps/static/img/avatar/user.png b/apps/static/img/avatar/user.png
index 1948d1661..8462a8a18 100644
Binary files a/apps/static/img/avatar/user.png and b/apps/static/img/avatar/user.png differ
diff --git a/apps/terminal/api/applet/applet.py b/apps/terminal/api/applet/applet.py
index c2b361ca6..5bd003a9c 100644
--- a/apps/terminal/api/applet/applet.py
+++ b/apps/terminal/api/applet/applet.py
@@ -87,6 +87,7 @@ class DownloadUploadMixin:
 class AppletViewSet(DownloadUploadMixin, JMSBulkModelViewSet):
     queryset = Applet.objects.all()
     serializer_class = serializers.AppletSerializer
+    filterset_fields = ['name', 'version', 'builtin', 'is_active']
     search_fields = ['name', 'display_name', 'author']
     rbac_perms = {
         'upload': 'terminal.add_applet',
diff --git a/apps/terminal/applets/navicat/README.md b/apps/terminal/applets/navicat/README.md
index b46ffb9e5..602b6e15f 100644
--- a/apps/terminal/applets/navicat/README.md
+++ b/apps/terminal/applets/navicat/README.md
@@ -1,3 +1,55 @@
+# Lina
+
+Lina 是 JumpServer 的前端 UI 项目, 主要使用 [Vue](https://cn.vuejs.org/), [Element UI](https://element.eleme.cn/) 完成,
+名字来源于 Dota 英雄 [Lina](https://baike.baidu.com/item/%E8%8E%89%E5%A8%9C/16693979)
+
+## 开发运行
+
+```
+0. 前置条件: 部署运行好 JumpServer API 服务器
+
+1. 安装依赖
+$ yarn install
+
+2. 修改 .env.development VUE_APP_CORE_HOST
+# ...
+VUE_APP_CORE_HOST = 'JUMPSERVER_APIHOST'
+
+3. 运行
+$ yarn serve
+
+4. 构建
+$ yarn build:prod
+```
+
+## 生产中部署
+
+下载 RELEASE 文件，放到合适的目录，修改 nginx配置文件如下
+
+```
+server {
+  listen 80;
+
+  location /ui/ {
+    try_files $uri / /ui/index.html;
+    alias /opt/lina/;
+  }
+
+  location / {
+    rewrite ^/(.*)$ /ui/$1 last;
+  }
+}
+```
+
+## 致谢
+
+- [Vue](https://cn.vuejs.org) 前端框架
+- [Element UI](https://element.eleme.cn/) 饿了么 UI组件库
+- [Vue-element-admin](https://github.com/PanJiaChen/vue-element-admin) 项目脚手架
+
+## License & Copyright
+
+Be consistent with [jumpserver](https://github.com/jumpserver/jumpserver)
 
 ## Navicat Premium
 
diff --git a/apps/terminal/models/applet/applet.py b/apps/terminal/models/applet/applet.py
index 6d0d0d3bf..1bad257f0 100644
--- a/apps/terminal/models/applet/applet.py
+++ b/apps/terminal/models/applet/applet.py
@@ -11,6 +11,7 @@ from django.utils.translation import gettext_lazy as _
 from rest_framework.serializers import ValidationError
 
 from common.db.models import JMSBaseModel
+from common.utils import lazyproperty
 
 __all__ = ['Applet', 'AppletPublication']
 
@@ -48,6 +49,14 @@ class Applet(JMSBaseModel):
         else:
             return default_storage.path('applets/{}'.format(self.name))
 
+    @lazyproperty
+    def readme(self):
+        readme_file = os.path.join(self.path, 'README.md')
+        if os.path.isfile(readme_file):
+            with open(readme_file, 'r') as f:
+                return f.read()
+        return ''
+
     @property
     def manifest(self):
         path = os.path.join(self.path, 'manifest.yml')
diff --git a/apps/terminal/serializers/applet.py b/apps/terminal/serializers/applet.py
index 64ae6eda2..f05f424c2 100644
--- a/apps/terminal/serializers/applet.py
+++ b/apps/terminal/serializers/applet.py
@@ -31,7 +31,7 @@ class AppletSerializer(serializers.ModelSerializer):
         model = Applet
         fields_mini = ['id', 'name', 'display_name', 'is_active']
         read_only_fields = [
-            'icon', 'date_created', 'date_updated',
+            'icon', 'readme', 'date_created', 'date_updated',
         ]
         fields = fields_mini + [
             'version', 'author', 'type', 'protocols',