download iExpressions at
https://aescripts.com/iexpressions/
Linking Colors in After Effects can be done very easily with the pick-whip and expressions. But what if you do not need exactly the same color, but a brighter or darker variant of it? With iExpressions you can create links that take the color of the linked property and then change their brightness or saturation. This is very useful for highlight and show areas, for example.
