When you’re over the opening/closing parenthesis, the matching closing/opening one is highlighted, it helps, I guess.
You are certainly right, I said that from memory, probably confusing it with the RED proposal.
(But it’s ugly as well 
)
I usually use GNAT Studio as an LSE, and it does that for code that I am editing. But it is no help when reading code posted to a forum that I am viewing with a browser. What editor are you using that does this highlighting to such code?
I misunderstood your question : I have no solution within the browser.
Rainbow brackets or similar extensions where each matching bracket pair gets a unique color is likely available as an extension for atleast vscode. I’m not sure if it would need to have Ada support. I wonder if a plugin for gnat studio could do similar.
Right. My point is that we often have to read code without the help of such tools, so code needs to be easy to read in those cases. For the Long, Incomprehensible Series of Parentheses (LISP) problem, I’ve found putting a space between them the easiest to read of all formats that I’ve seen.
Might prism’s matching braces plugin be what you’re looking for?