add padding for mux

main/NekoGui_DataStore.hpp

@@ -102,6 +102,7 @@ namespace NekoGui {
         bool connection_statistics = false;
         int current_group = 0; // group id
         QString mux_protocol = "";
+        bool mux_padding = false;
         int mux_concurrency = 8;
         bool mux_default_on = false;
         QString theme = "0";