OK, my first question is, do you really need to keep it? if so paint it the wall color, its not really a feature to your otherwise lovely room.

Paint it white or tile it (MOP shells). I'd get rid of the bulky bar chairs, and get something more sleek!

The pale grey walls and white don't really go with the furniture. So if possible, paint all trim and fireplace surround a warm slate, like the bar counter, for example.

Im just not sure you want the FP to be a focal point. I still say paint it the wall color if nothing else its at base coat.

If you paint it, try to remove the decoration at the front.

HI -- Look at the wall mounted flat fireplaces that are electric and have heat . That one you have is horrible and does not fit the room properly and just looks wrong and cheap in that corner . I have one that is what I mentioned and we use it all the time . If you get one do not get anything that is angled into a corner and do not put it where it is now .

I would paint it the same color as the wall if your intent is to minimize the size. If you want to accentuate it, but just lose the golden honey color, then I would go with white.

Actually, the eye sees white and light colors first and darker colors last so darker paint on the fireplace would be better for diminishing the look. I know that is surprising but it is true. It would also tie in with the bar countertop.