To set a sublayer property to inherit from its parent
layer:
Select a sublayer in the Map Layers pane to display the
map style property sheet.
Click the Right Arrow head next to the property
you want to inherit. The Right Arrow changes to an Up Arrow
and the value is automatically set to that of the parent layer. You
can no longer change the value without first changing the Up Arrow.
To set a sublayer property to be independent of its parent
layer:
Select a sublayer in the Map Layers pane to display the
map style property sheet.
Click the Up Arrow head next to the property you want
to set independently. The Up Arrow changes to a Right Arrow
and you can set the corresponding property value.