By adding font lock keywords for headline and plain list indicators
(e.g. stars, dashes, numbering) and indentation whitespace, we could
significantly improve variable pitch display in org-indent-mode.
org-indent-mode's alignment approach expects certain text elements to be
fixed pitch. When the
`org-agenda-tree-to-indirect-buffer' does not respect the
`org-indirect-buffer-display' value of 'current-window unless invoked
with a prefix arg.
The function does respect all other values for
`org-indirect-buffer-display'. And it does respect the value
'current-window when the function is cal
