Hey Mike, you know me in person, so you know I'm not half the rude buttwipe I am on here some days.
I know you do hard work, and it does look spiffy. The only problem I have is the one good style (default black that we're all used to) is always the one getting tweaked and changed during times. If you made the default black a separate entity, then played around with a 'new' default, then I'm sure many of us would be happy. As it is now, the only non-super colored w/ texturized backgrounds is white stealth, which is just the inverse of what we've all known and loved for many years.
I have no problem with you toying with new styles, and making them available for most of the people, just don't remove a good style that we're all familiar with to bring in the fancy and bold stuff.
At the WotC boards, you made the old ugly default style a quick change for those that didn't like the high graphics and wild colors...do the same here and make sure that the old options that work aren't constantly being changed, but feel free to bring new customs in for those that want them. Keep everyone happy that way.
And since you're the boards guru at 2 of the largest RPG sites on the net, I'd say you're plenty 'professional' in the terms of what you do, and you do pretty well at it. Criticism will always come during change, and unless there's no other option, old settings should always be available to those who are scared of change (like me).
And to the poster who said it's slow on high speed connection, try running it at 28.8 dialup and tell me how slow it is.