Personally I went with something intuitive & less complicated and only 2k of stylish script (will probably commit to user file) - green for on, red for off. No pics, no dialog, no messing . . . . wfm. May "crisp up" the image edges later. Again, the tweaks were made ONLY for "16" png sizes/small icons. Should I change to "large icons," the default AB+ ones take over. Green & red seem more "Palm Pilotish" and intuitive to me. Top view is green/enabled in as it appears in Toolbar, bottom is red/disabled as appears Status Bar.
EDIT: These are crisper & attained by "cheating," and making the image actually 14 x14 - removes some "padding" & edge fuzziness by placing the smaller 14x14 along right edge of its "placement slot." Size then relates better to adjacent icon and arrow.

Simple Icon Script Here