-(define-public begin-of-line-visible
- #(#f #f #t))
-(define-public end-of-line-visible
- #(#t #f #f))
-(define-public end-of-line-invisible
- #(#f #t #t))
+(define-public all-visible #(#t #t #t))
+(define-public begin-of-line-invisible #(#t #t #f))
+(define-public center-invisible #(#t #f #t))
+(define-public end-of-line-invisible #(#f #t #t))
+(define-public begin-of-line-visible #(#f #f #t))
+(define-public center-visible #(#f #t #f))
+(define-public end-of-line-visible #(#t #f #f))
+(define-public all-invisible #(#f #f #f))
+