[salvcy]

The menu bar icon went gray whenever scrolling wasn't handled, even while Keep Awake or Wiggle Cursor was running, so Meowse looked off while it was busy. Now each part of the icon means one thing:

• The wheel shows only while scrolling is on. It's gone whenever scrolling isn't handled: paused from the menu, waiting for Accessibility, couldn't start, or a trackpad or Magic Mouse scrolling.
• Gray means Meowse is doing nothing at all: no scrolling, no Keep Awake, no Wiggle Cursor.
• Eyes (Keep Awake), motion lines (Wiggle Cursor) and the update dot are unchanged.

Scrolling	Keep Awake or Wiggle Cursor	Icon
On	either	Full, with the wheel (unchanged)
Off	off	Gray, without the wheel
Off	on	Full, without the wheel, with eyes and/or motion lines

The change is in StatusMenuController.updateIcon() and makeIcon: Look gains wheel, and the dimming condition now also checks Keep Awake and Wiggle Cursor. Cross-fades and the blink work as before.

Tested: all 107 tests pass. Every state was rendered from makeIcon in light and dark menu bars, and a separate dev copy ran in the menu bar next to the release build.