update

translations/fa_IR.ts

@@ -1302,8 +1302,8 @@ This needs to be run NekoBox with administrator privileges.</source>
         <translation>لینک های انتخاب شده را کپی کنید</translation>
     </message>
     <message>
-        <source>Enable VPN</source>
-        <translation>فعال کردن vpn</translation>
+        <source>Enable Tun</source>
+        <translation>فعال کردن tun</translation>
     </message>
     <message>
         <source>Clone</source>
@@ -1648,10 +1648,6 @@ Direct: %2</source>
         <source>Request with proxy but no profile started.</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <source>Enable VPN</source>
-        <translation type="obsolete">فعال کردن vpn</translation>
-    </message>
     <message>
         <source>Enable System Proxy</source>
         <translation type="obsolete">پروکسی سیستم را فعال کنید</translation>

translations/ru_RU.ts

@@ -1310,7 +1310,7 @@ https://matsuridayo.github.io/n-configuration/#vpn-tun</translation>
         <translation>Скопировать ссылки для выбранных</translation>
     </message>
     <message>
-        <source>Enable VPN</source>
+        <source>Enable Tun</source>
         <translation>Включить TUN-режим</translation>
     </message>
     <message>

translations/zh_CN.ts

@@ -1372,8 +1372,8 @@ End: %2</source>
         <translation>启用系统代理</translation>
     </message>
     <message>
-        <source>Enable VPN</source>
-        <translation>启用 VPN</translation>
+        <source>Enable Tun</source>
+        <translation>启用 Tun</translation>
     </message>
     <message>
         <source>Tun Settings changed</source>

ui/mainwindow.cpp

@@ -772,6 +772,9 @@ void MainWindow::neko_set_spmode_vpn(bool enable, bool save) {
                         on_menu_exit_triggered();
                     } else {
                         MessageBoxWarning(software_name, "Setcap for Tun mode failed.\n\n1. You may canceled the dialog.\n2. You may be using an incompatible environment like AppImage.");
+                        if (QProcessEnvironment::systemEnvironment().contains("APPIMAGE")) {
+                            MW_show_log("If you are using AppImage, it's impossible to start a Tun. Please use other package instead.");
+                        }
                     }
 #endif
 #ifdef Q_OS_WIN

ui/mainwindow.ui

@@ -834,7 +834,7 @@
     <bool>true</bool>
    </property>
    <property name="text">
-    <string>Enable VPN</string>
+    <string>Enable Tun</string>
    </property>
   </action>
   <action name="menu_clone">