You could extend the OSC thing to other things...such as LFOs/G-ENV/MOD ENV etc. i.e. some consistent way to see everything active at a glance. I'm guessing the SA team could get around ANA2 with their eye's closed by now...easy to overlook how many options there are
I absolutely love the two GUIs (gorgeous on retina), but I can help wonder if a third (customisable) LED colour could be used to show all active buttons/controls etc.
NB) Great job on ANA2, really not finding many problems....quite the opposite experience to the last big-name VST synth I beta tested: Only shame is creating a cool preset and not being able to save it