Quick question - working on developing a frontend notification plugin and adding a new 'type' within the notification preference settings. The column definition for 'preference' within the 'core_notification_preferences' table is set(email,inline). Would my plugin be rejected if on install my plugin changed the column definition to add a 3rd type? 

@Daniel F is probably the best to answer this

We can forgo this question. I have turned it into an application and will not mess with IPB's native tables.