A PR-practicing FBvian sends along this cellphone photo taken yesterday at the Margot and Bill Winspear Opera House. A crew from Irving-based Haley-Greer was installing the red glass on the exterior of the hall. Each panel measures about 10 feet wide by 4 feet high and weighs more than 300 pounds. Check out Jerome Weeks’ report from the Haley-Greer warehouse. Or check in on the Winspear right now, using this webcam.