ediff-current-diff-face-Ancestor

ediff-current-diff-face-Ancestor is a variable defined in `ediff-init.el'.
Its value is

ediff-current-diff-Ancestor

Documentation:
Face for highlighting the selected difference in buffer Ancestor.
DO NOT CHANGE this variable. Instead, use the customization
widget to customize the actual face object `ediff-current-diff-Ancestor'
this variable represents.