Questions

1. What color is used for driven properties in the interface?
2. Can we set keyframes for purple properties?
3. Can a metric property, such as Location, drive an angular property, such as Rotation?
4. Can we change the ratio between the driving and driven properties?
5. Can we type Python expressions when we set values in the interface?
6. How do we tell Blender that the expressions we have typed should be a driver?
7. How do we edit a driver property in the user interface? Is there only one way?
8. Can we add custom properties to an object and use them to control other objects?
9. In Python, can we create new drivers using the collection.new method, as we do with constraints? If yes, why do we use object.driver_add instead?
10. Why is the targets attribute of driver variables a list? Which type of variable has more than one target?