hi. Battfink is Energy Saving preference dialog that allows you to configure your display energy settings and show a status icon in the panel. I suggest gnome-extra/battfink.
Created attachment 15979 [details] battfink-0.6.1.ebuild
Created attachment 38260 [details] battfink-0.6.2.ebuild This is just a slight modification (fetches the source from gnome.org) and update (to 0.6.2) to the already submitted battfink ebuild.
Note: this hasn't made a release in a little over a year
i can't even contact the upstream site, and there seems to be little interest in this ebuild
won't fix