GSCompoent.slant is a tuple of two angles (slantX, slantY), both values are given in degrees.
The slant is a subset of the affine transformation of the component (GSCompoent.transform).
You can get and set the slant of a component.
Generally, slantY is kept at 0 and only slantX is changed. This allows the slant to be reconstructed cleanly in components that also use rotation.
Orientation is not exposed in the UI as it’s still considered experimental, but for guides that are not exported it should be fine to use right now. There are more infos on the orientation property in this topic: