get-inactive-caret-threshold in editor<%>
Returns the threshold for painting an inactive selection. This
threshold is compared with the draw-caret argument to
refresh and if the argument is as least as large as the threshold
(but larger than 'show-caret),
the selection is drawn as inactive.
See also
set-inactive-caret-threshold and Caret.
(-> symbol insendan-editorget-inactive-caret-threshold)'(no-caret show-inactive-caret show-caret)