Contextual tab provides for the end user control that allow to edit the selected object.
For example, when the user selects a particular object type in the document, there are one or more contextual tabs, which allows not to worry about finding suitable to edit this object functions (see Figure 1).
After the completion of operations with the object (the object is no longer selected), contextual tabs disappear automatically.

Figure 1
Contextual tabs can be of various colors (of the seven colors that are supported QtitanRibbon), each color can be associated with a particular context.