Howdy, I made this, glad you like it.

I guess I really should add a help file some day

But for anyone interested, an explanation of the values that you weren’t to clear on:

FOREGROUND_APP:
// This is the process running the current foreground app. We’d really
// rather not kill it! Value set in system/rootdir/init.rc on startup.

VISIBLE_APP:
// This is a process only hosting activities that are visible to the
// user, so we’d prefer they don’t disappear. Value set in
// system/rootdir/init.rc on startup.

SECONDARY_SERVER:
// This is a process holding a secondary server — killing it will not
// have much of an impact as far as the user is concerned. Value set in
// system/rootdir/init.rc on startup.

HIDDEN_APP:
// This is a process only hosting activities that are not visible,
// so it can be killed without any disruption. Value set in
// system/rootdir/init.rc on startup.

CONTENT_PROVIDER:
// This is a process with a content provider that does not have any clients
// attached to it. If it did have any clients, its adjustment would be the
// one for the highest-priority of those processes.

EMPTY_APP:
// This is a process without anything currently running in it. Definitely
// the first to go! Value set in system/rootdir/init.rc on startup.
// This value is initalized in the constructor, careful when refering to
// this static variable externally.