Nested or Inherited Opacity / Colour Filter
The following illustration shows two Images in a Parent / Child relationship. The Parent Image is at full (100%) Opacity.
The next illustration shows the Parent's Opacity changed to 50% with its "Nested Opacity" box unticked.
Note that the Child Image and the Text Objects are still at 100% Opacity.
In the next illustration the "Nested Opacity" box has been ticked and the Child Image and Text Object have both "inherited" the Parent Image's 50% Opacity.
The next illustration shows the Parent Image with a Colour Correction Sepia Toning filter applied in Objects and Animation. The "Nested Colour Filters" box is Unticked.
In the next illustration the "Nested Colour Filters" box has been Ticked and the Child Image "inherits" the Sepia Toning Filter.
DG