The work I am doing is for computer/online use. I would like to have Vegas match the Window's color space, so I can go back and forth between Photoshop, Hitfilm and Vegas without color shift or gamma shift. What settings should I use to achieve this?
Use REC 709 Limited Range. NOTE that you will have to set your media color space and range manually for your Photoshop images. They import by default in Unmanaged Color Space.