Index: pluginconf/gui.py
==================================================================
--- pluginconf/gui.py
+++ pluginconf/gui.py
@@ -70,10 +70,11 @@
     """
     plugins = kwargs.get("plugins", {})
     opt_label = kwargs.get("opt_label", False)
     theme = kwargs.get("theme", "DefaultNoMoreNagging")
     if theme:
+        del kwargs["theme"]
         sg.theme(theme)
     if files:
         plugins = read_options(files)
     layout = plugin_layout(plugins.values(), config, plugin_states, opt_label=opt_label)
     layout.append([sg.T(" ")])