Whoever argues that Slack is the new thing, I give you this

    > sudo ps_mem | grep slack
    564.3 MiB +  72.4 MiB = 636.8 MiB	slack (5)

I run it because I have to, but I really hate how bloated it is, and how the background color (white) cannot be changed.

Usually end up running "xcalib -i -a" (invert colors) before switching to slack.