Maybe you were wondering why objects wireframe is not pink anymore in Maya 2019 - when this object is not directly selected but it is somehow affected by the selected object(s).
This is called Highlight Affected and is Off by default in Maya 2019. Also you cannot turn it back On in Preferences anymore. This feature was also moved under new menu:
Display > Animation > Highlight Affected
This is called Highlight Affected and is Off by default in Maya 2019. Also you cannot turn it back On in Preferences anymore. This feature was also moved under new menu:
Display > Animation > Highlight Affected
