Alpha 12 savegame location mac

[schmonzo]

Hi everyone,
I can't seem to find my savegames in alpha 12 on my macbook. When I click in game on the button that says 'open savegame folder' nothing happens. In (User)/Library/Application Support/ there is no rimworld or ludeon folder. Can anyone point me in the right direction? I just want to transfer my save to my windows pc...
Thanks