This variable is used on character-based hosts to specify the color and video attributes of the characters used to form the border (box) around the active floating window. ACTIVE_BORDER_COLOR can be set to a variety of numeric values that express combinations of color and video attributes. See the documentation for the COLOR Phrase in the ACUCOBOL-GT Reference Manual.
If ACTIVE_BORDER_COLOR is set to 0, the active window's border is drawn with the colors and video attributes specified in the COBOL program when the window is initially created. The default value is 0.