I know how frustrating that is. Before I bought Franco's app, I was only able to use the CM9 kernel, as it's nearly the only one that offers compatibility with the built-in color controls-and no color tuning...
not an option lol. I was never without color control on the Nexus S, and I can't do it with the GN either.
I kind of wrestled with the decision to purchase Franco's app at first, as these are tight financial times-for nearly everyone. But finally, I decided to go in the market, without giving myself a chance to think about it, and I just pressed the purchase button so I couldn't turn back, haha. I think the hardest thing to accept was that I could already do like 85% the tweaks with something else, for free, and I was essentially buying it for one "hostage" feature.
But....it's a couple months later, and I'm actually
very pleased with my purchase decision. I enjoy the app much more than I had anticipated. After seeing all the diligent work he puts into updating and improving it, I feel confident that my investment is small compared to all the support I'll receive from that one purchase. (Same with Titanium Backup--that investment still brings an update every week-over a year later) The great thing is that you'll be able to use it with every custom kernel. Air kernel colors are perfectly adjusted with Franco's app, as well as all the other tweaks.
A bit more on-topic..Air Kernel is really great on the GN. I used it on the Nexus S too, and it was great and everything, but this phone just seems to show its true potential..I guess custom kernels are just alot more fun with this phone. Idk..