[jstummbillig]

I want to be able to have variation in perceived brightness, but not as a side effect while browsing for a hue. I doubt most designers would argue otherwise.

Compare it to waiting for a compiler: Sure, you can use the time off to stretch and take a sip of tea but there would be no serious opposition to compilers working at double speed tomorrow. It's simply better to not have to wait (all else being equal). But it's something you accepted and you deal with it, so wait you will.

The current color pickers are an annoyance that we have lived with since, well, always, but an annoyance nonetheless. Happy to adopt these pickers if they gain adoption. OKHSL and OKHSV look spiffy.