I like to use Kim's fringe "buffer-boundary indicator" bitmap
feature (set with the variable `indicate-buffer-boundaries'), but
the default bitmaps are rather unpleasant ...
On testing, I prefer Kim's bitmaps.
I am not sure whether my preferences comes from a liking for
symmetrical images, such as top_left_angle_bits, or my high resolution
display, or something else. The suggested continuation_bits map is
much too `thin' or `light' on my screen.
I have tried the suggested bitmaps both on an instance of Emacs
started with `emacs/src/emacs -Q -D' and on an instance started with
my usual colors and fonts.