I would not put pot lights in a bedroom get a nice ceiling fixture to use for all over light and to add a bit of pizazz I agree that bed needs much more tailored bedding and the drapes need to be heavier to really work in a color that works with the new bedding. A random pillow with no connection to anything else in the room does not work. Go find some bedding that you love and build your color scheme around it that is how I always design a bedroom there is no reason to be boring with neutrals, It would also be nice to see the whole space too. This is what I mean by more tailored bedding and pillows that connect to something in the space

My first thought is that it might be hair dye or some other dye like really wet bath towel bleeding dye on the floor. Try rubbing alcohol and/or a hydrogen peroxide and baking soda paste.

Lindsey_CA, yes, that is the area where the addition will go. We didn’t plan on removing the brick, the cost to do that was not figured into our budget. It just cost more than we wanted to pay. The thing is... once it’s built, we can to landscaping to better hide the fact that the brick isn’t an exact match. I’m also contemplating on using brick stains to help blend it in better. Our existing brick is so mottled that I think we are going to have to stain the new brick some, no matter what brick we choose....if we choose brick. I’m just trying to pick the best base to build the color on.

FYI - Many glass tile manufacturers do not allow the use of epoxy grout. Is the glass rated for shower use? (Thermal shock ratings) Strongly suggest using sliced stone instead of rounded on the floor. The floor to wall joint MUST be flexible or you will have cracked glass. I'll leave grout colors for the designers. I felt it was more important to address potential failures. If you have a Tile Setter they would have already discussed these concerns. If not there is another area of concern. Best.