ediff-control-frame-upward-shiftediff-control-frame-upward-shift is a variable defined in `
ediff-wind.el'. Its value is
42Documentation: The upward shift of control frame from the top of buffer A's frame. Measured in pixels. This is used by the default control frame positioning function, `ediff-make-frame-position'. This variable is provided for easy customization of the default control frame positioning. You can customize this variable.