YKK Window Mullion Installation? I don't see anything on the manufacturer's website. Where is the...

I don't see anything on the manufacturer's website. Where is the best place to get mullion installation instructions for YKK brand window?
What color should i paint my walls?
Answers:    Never heard of YKK brand window. Most mullions are installed at the time of manufacture if the pane is a true divided light. There are dummy mullions to craft it look like a divided glass also. I had them almost 40 years ago. They are a wood frame next to cross lattice made to fit the size of the glass, but slightly smaller. There were small pad of foam rubber attached to wedge against the frame.
What color should i paint my room?? (15...