Source: macOSXhints

10.3: Enable the floating ExposÚ blob
Sat, Oct 25 '03 at 12:00AM Ľ from: Xeo

There is an interesting Panther dock feature that enables a small blue Aqua blob that floats above all other windows, as seen in the top portion of the screenshot to the left. When you mouse into the blob, it higlights (the bottom portion of the image). When you click on it, ExposÚ come on in "Application Windows" mode (higlight all windows of the frontmost app while dimming others). You can move the blob around as you might expect - click and drag it to a new location.

This hack was detailed in this thread on the MacNN Forums; it was originally posted there by the user sandsl. To enable the blob, go into the Terminal and type this command:

% defaults write wvous-floater -bool true

If you ever get sick of the blob, just execute the same command, but change true to false. You then need to log out, or quit and restart the Dock, to see the changes take effect. You can easily do this by typing killall Dock in the Terminal.

A few other options that were found: When holding Option and clicking the blob, "All window" mode is enabled (the windows shrink to fit so they're all visible). If you hold Shift while clicking (or Option-clicking) the blob, the ExposÚ effect will occur in slow motion (very cool with lots of windows open and an Option-click).

It has also been mentioned that you can change the image of this floater by replacing two files within the package. The files are called wvousfloat.png and wvousfloatselected.png, and they can be found on this path: /System -> Library -> CoreServices -> -> Contents -> Resources. Replacing them (make a backup first!) is left as an exercise to the readers.


My Comments: Very interesting!