For some reason I am not finding an answer to this through Google or Macrumors searches. Anyways I want to increase the amount my Macbooks automatically reduces its brightness when running on battery. Is there a free third party app that lets me set sliders for each option? Or a .plist file that I can edit, if so what lines to look for? Either option would have to let me still use my brightness keys to change brightness to meet different situations. It seems silly that Apple did not include custom sliders in the Energy Saver pane. As I would like maximum brightness automatically when plugged in and 2 or 3 from minimum when on battery.