Update: There is a new web browser called NIGHT OWL which is the solution to browsing in a pitch black room. Freakin PERFECT!
It's the best 99 cent app purchase I have made (and I've bought LOTS of apps).
Now the only thing that's awkward in a dark room is email. I have to do it via the web, instead of the dedicated app.
It's too bad Appled doesn't allow third party email apps, like they do with browser apps. There would eventually be a solution for email then, too, in a dedicated app. That third party solution might also accommodate features missing from the current default email app like the ability to send from many of my other yahoo email addresses. (I have more than 10 email addresses, all on one account, and need to send from different "from" addresses for different purposes. But I can't do that with the default mail app. I have to go to the web for that, too.)
I cannot express how happy I am that someone built this very cool application for browsing in the dark. It's way cool.
Hopefully this kind of toggle will be added to the OS itself eventually, because it would be useful for many more things (like maps in a car at night) but having a browser that works this way is more than 50% of the solution. Kudos!!!