the window idea

windows always have holes on the top when players make a roof on there creations out of windows so wat if there were window roofs with no holes, so if you want you can create that, or if the window roof with no holes already is in minecraft well i think nobody told me about that, or if you are sticking with window roofs with holes well can i tell you a little secret? The secret is: that was not the whole idea, there was another part of the idea that i forgot to tell you and its that there will still be window roofs with holes which there will be 2 types of holes, type 1: window roofs with holes and type 2: window roofs with no holes. So that's my idea.