Editing properties doesn't work as explained in doc

[Gleb]

TypeScript doesn’t know that.

@Gleb

You need to ensure the node type is the one with not readonly opacity so TypeScript doesn’t give you a warning. You can filter selection to include only the node types your plugin accepts.

And this may help:

Get all nodes that are red

In simplest terms, this is TypeScript warning you about the fact that a specific property you are trying to access may not be present on the nodes depending on the type. It’s a TypeScript error, which doesn’t mean your code is wrong, it means TypeScript thinks it’s wrong. It knows that findAll function and other similar functions can return all types of nodes (SceneNode), and it doesn’t know that your condition will only return objects of a specific type. There are four ways to “fix” this: U…