Extension method names

When we add method, property (compute, associated object) to extension on UIKit class, there might be conflict even if we make internal/private extension in the framework. Like with `Fashion`, users can't add property names `styles` to `UIView` classes?

There are some posts about this
- https://pspdfkit.com/blog/2016/surprises-with-swift-extensions/

To avoid that, I think we need to add a prefix. Then what prefix should we use?