The CSX-bc, commonly known as Yn2 or "Bright Future" is a livery used by CSX Transportation included in Train Sim World since update 1.4. The livery was introduced in March of 1990 before being replaced by the Yn3 livery and the updated Yn3b livery.
The livery featured a grey color for the side and on the top, the blue stripe that follows to cover the front and side of the cab, and the yellow for the nose and at the back hood. The CSX logo is in blue on both sides, the front of the nose, and at the back of the loco. It is still around by CSX and is still used as part of CSX Heavy Haul.