This may be perfectly normal and expected since I've never attempted this before.
In Part Design WB I create a Body and a sketch on the XY_Plane. Draw a rectangle.
Now select the Sketch and make a shape binder.
If I pad the Sketch it extrudes in the positive Z direction.
If I pad the Shape binder it extrudes in the negative Z direction.
Is this correct?
OS: Ubuntu 19.10 (XFCE/ubuntustudio)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Build type: Release
Python version: 3.7.5
Qt version: 5.12.4
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/United States (en_US)