
in 2181 that feature changed. The highlighting was no longer there:

but can be re-added with "indent_guide_options": ["draw_active"]:

Notice though that now only the active guides are being drawn, the other ones are not being rendered.
I like the way indent guides were in the 2139. Is there a setting I am missing to change it back to this?
"indent_guide_options": ["draw_normal", "draw_active"],
You have to add both options to get the pre 2139 version.
For others would you edit your post and mention the comment above?