Window treatment for sliding glass doors are vary in execution. But the underline of it there are some categories. You can use curtains or blind. For curtains, regarding how to open it, there are a vertical or horisontal way. It’s actually will impact the way that the sunlight penetrate the room. What sun effect that you wanted in the space? The vertical and the horisontal curtain will surely had a different effect. So, your task is to make sure that the curtain do the effect that you want. For the blinds there are many colors options. Try to match the color with your room theme….