JoshyPHP wrote: ↑
Tue Jan 17, 2017 11:53 pm
It's not implemented because it's clunky and a bit slow, and it's better implemented as an extension.
Why wasn't your extension integrated into phpBB core then (it is in fact just one line, but a helpful one)?
Maybe with a config setting for it to be optional (I do not find any reasons for it to be switched off, however).
Because highlighting really improves readability.