This idea of "release early, release often" might actually work. A day after releasing first public version of VisualAck, my visual grep tool for mac, I'm releasing another version which includes an improvement suggested in the forum: to not highlight matches with control sequences when not printing output to a tty (e.g. when output is redirected to a file).

To complement that, I've added ack-compatible options --[no]color and --[no]colour to force or disable highlighting matches.

This, of course, only applies to command-line vack utility and not the UI.