Adobe After Effects how to make two colors and change their borders in shapes?

Question

Geometry

How to make 2 shapes of different colors with a common editable border?

Answer 1

To do this, after creating 2 objects, an adjustment layer is created on which special effects like slider control, color control, checkbox control, etc. are applied. Then, on these pick whip controls, the stroke properties of your objects are attached to the slider control, which can be renamed appropriately for convenience, the color properties are attached to the color control, etc.