If you use the code with the default buttons:
Ext.Msg.show({
title:'Save Changes?',
msg: 'You are closing a tab that has unsaved changes. Would you like to save your changes?',
buttons: Ext.Msg.YESNOCANCEL,
icon: Ext.Msg.QUESTION
});
the buttons on the window are in the order yes - no - cancel. I would like them in the order cancel - no - yes for consistency in my app. Is there a way to add a different configuration or change this for my needs?