A CTAspect is the aspect underlying an Aspect Stack, much like an IItemDefinition underlies an IItemStack.

It might be required for you to import the package if you encounter any issues, so better be safe than sorry and add the import.
import thaumcraft.aspect.CTAspect;

You can retrieve a CTAspect object from a CTAspectStack object:

ZenScript
 Copy
val aspect = <aspect:ignis>.internal;

Name	isGetter	isSetter	Type
Name chatColour	isGetter ✔	isSetter ✔	Type string
Name name	isGetter ✔	isSetter ​	Type string