Do you also then accept that it is okay for the window in question to have access to the bitmap data drawn in other windows in order to tell the compositor "how

Do you also then accept that it is okay for the window in question to have access to the bitmap data drawn in other windows in order to tell the compositor "how I want to look"? I'm not sure how else you expect the window to get the data for the background (i.e. root window) (and/or other windows, as applicable) in order to make a transparent background. Edit: Although if it specified the background with an alpha channel, I suppose I guess it would be okay.