GUI Pitfall: Changing the Application Icon
SummaryChanging the application icon decreases usability of your product. This icon is shown when switching between applications from the keyboard. Users are accustomed to finding your application by sight. If the icon changes, they'll have trouble finding it.
DetailsOne such application that changes its icon is Evolution. When changing between mail and calendar folders, the application icon changes between a letter and a day planner. While an interesting trick, it causes problems when switching between applications. If the user wants to look at email but left Evolution showing the calendar, the familiar mail icon is missing from the list.
So to avoid user confusion, be certain to keep the application icon consistent throughout the execution of the application.
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