I know that if you adjust the sharpness mode on the video side and save to a preset, when you use the preset on the VGA side, you will get the benefit of the control, even though the menus don't include the sharpness control.
One of the other people gave some good advice, which is start with the color temp setting you like best and work from there adjusting the color settings you do have. I have never used the standard settings, like Video or Film, in the entire time I've used my X1. I made a few presets and pretty much stuck with these. Since the X1 defaults to your last preset, I pretty much don't change mine at anymore.
Another thing to remember is that there is purposeful variation in the way certain movies and TV shows look. Some are going to have an unnatural tint or other color problem. Don't try to make every show look good because it is impossible and will throw your settings out of whack for the majority of normal looking stuff.