What does "like being drowned in Skittles" mean?

From here: http://www.loper-os.org/?p=568

Using Squeak is “like being drowned in Skittles.” I understand that it is a monumentally great thing if one is able to see past that, but I suspect that most prospective users cannot do so.

I searched for an explanation, but I can't seem to find one. Does it mean that you're getting "too much" good stuff? So much that it's actually a disadvantage?

It's just a reference to the overdone colour scheme on Squeak:

Skittles come in all rainbow colours.

Being drowned in Skittles refers specifically to the television commercials for the Skittles candy. In the commercials, millions of Skittles invariably end up falling out of the sky like a heavy rain. Being drowned in Skittles, then, is a metaphor. It means being knocked down and overcome by a deluge of colorful things.