Current status: with the addition of favorites inspector and history inspector the UX gets worse because the both inspectors tend to be in front. They should be by default always the last tabs. So take them out of the normal order and treat them accordingly

• optimize order
• add checkboxes to the pref page to activate/deactivate favorites and history (default is on)
• check if the default pref settings equals the default visualization if no pref is set yet.