FileMaker 12 is CSS-based. That means the "effects" are applied as CSS styles to certain objects in certain themes. I suggest you learn as much as you can about the Themes in fmp12. We don't have the ability to directly alter the theme stylesheets (CSS), but much of the "styling" can be altered in the Inspector. (Although you will find that some have chosen to manipulate outside the Inspector, it's not recommended by FMI.)
Since I've been able to "simulate" embossed and engraved with just the native objects, I don't worry about having convenient selections for effects. Also remember that in fmp12, you have "states" (4! of them) for objects: normal, hover, in focus & pressed. So now you have a way to make something change as your action on the object changes:
from the help topic "Specifying the display state for an object"
To display the object as specified when
The object is available to the user, but is not currently selected.
The object has been activated by a mouse-click, the Tab key, or a script.
The user pauses the pointer over the object.
The mouse button is held down on a clickable object.
Tip: if you have a graphic that has the desired "effect" you may use it for your objects, too! Filling an object or a layout part with an image