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Message headers will describe the object they are referring to (for example: Shifts). In some cases they may also contain the actual names of the entities (for example: Car Insurance evaluation form).
Dialog headers may describe the object they are referring to, or display action names (for example: Save as…)
if If the header text exceeds the container’s width it will be truncate, showing an ellipsis (…). In this case, hovering over the header will open a tooltip showing the full header text.
In rare cases, button labels may change as a result of a user action.
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