Lightweight single-character scrollbar. Emulates the behavior of the %P statusline field.

Charbar is intended to be used with 'statusline'/'rulerformat':

let g:charbar_bar_style = 'braille'

let &statusline = '... %{charbar#Char()} ...'

The character that's displayed can be customized by setting g:charbar_bar_style and g:charbar_arrow_style.