Ability to change tag highlight behavior

As mentionned in https://github.com/elementary/code/issues/29 , when cursor reaches the beginning or the end of a tag, the superior and inferior characters get highlighted. That is a great feature, but it does hide the cursor prompt and sometimes confuses on what is selected.

While looking at the issues, I found a perfect example ot the underscore/highlight done in Atom https://github.com/elementary/code/issues/311,

I could not find this option in the Code settings (only to switch it off), and with dconf, I only managed to find `highlight-matching-brackets` in `io.elementary.code.settings` but no setting for the behavior.

Anyone would know if/how it can be done, maybe editing some file ?