Merge pull request #12638 from actioninja/cleanernanoopen

Prevents nanoui from flickering when opened in fancy mode

code/modules/nano/nanoui.dm

@@ -416,6 +416,11 @@ nanoui is used to open and update nano browser uis
 	if(!initial_data)
 		set_initial_data(src_object.ui_data(user, ui_key, state)) // Get the UI data.
 
+	// Preset the can_rezie and titlebar values on uis if the user has fancy uis set
+	// Prevents the ui from flickering when opened
+	if(user.client.prefs.nanoui_fancy)
+		set_window_options("focus=0;can_close=1;can_minimize=1;can_maximize=0;can_resize=0;titlebar=0;")
+
 	user << browse(get_html(), "window=[window_id];[window_size][window_options]")
 	winset(user, "mapwindow.map", "focus=true") // return keyboard focus to map
 	on_close_winset()