Improve startup and shutdown display

[VisionInit]

I have noticed that when starting up and shutting down the computer, the screenlets do some interesting .. searching for dimensions. Some times this means that when I startup, I see a flicker of the screenlets that are all centered on the screen, and then fall into place.

I would like to request that there is a transparency fill over the screenlets until they are positioned, at which time the opacity fades in. This would provide a very smooth startup.

An option could be provided to toggle between the fade, and perhaps an option to adjust how long the fade lasts.. but that would best be suited for an advanced option in my opinion.