Hi OSTexo, sorry currently there isn't any way for the styles to get imported in PDF or AI file imports.

Part of the problem is that those file formats are not really structured in such a way that the layers themselves actually have the color properties directly associated with them, color is something that's asssocated more with individual objects or really it's actually a color change instruction that is present in some list of vector draw operations. This does not quite map directly to the concept of the color belonging to a layer/style/material type organization entity...

In the future I can probably try to get it to work for cases where all objects on the layer did happen to have the same color but currently it does not attempt to do that.

Getting stuff like this to import is usually more difficult than getting it done for export.

- Michael