e/Window decoration

Information
has gloss	eng: In graphical computing, window decorations are provided by window managers to improve the usability of a multi-windowed desktop. They typically consist of a title bar along the top of each window and a minimal border around the other three sides, although this can often be varied upon if the user wishes.
lexicalization	eng: window decoration
instance of	(noun) the totality of surrounding conditions; "he longed for the comfortable environment of his living room" environment