                     \ Screen     area        example      back   fore    
                     \ ----------------------------------------------------
 3  0 --> tcolor(1)  \ Editor     Border      "File"       cyan   black   
 3 15 --> tcolor(2)  \ Editor     Border      "Inserting"  cyan   white   
 3 15 --> tcolor(3)  \ Editor     Border      "0 1 2 ..."  cyan   white   
 0  7 --> tcolor(4)  \ Editor     Frame                    black  gray    
 0 10 --> tcolor(5)  \ Editor     Text                     black  green   
 3 14 --> tcolor(6)  \ Command    Header      "Polymath"   cyan   yellow
 3  0 --> tcolor(7)  \ Command    Footer      "F1"         cyan   black
 3 15 --> tcolor(8)  \ Command    Footer      "Edit"       cyan   white
 0  7 --> tcolor(9)  \ Command    Frame                    black  gray    
 0 10 --> tcolor(10) \ Command    Cmd text                 black  green   
 0 10 --> tcolor(11) \ Command    Msg text                 black  green   
 0 10 --> tcolor(12) \ Command    Num. stack               black  green   
 0 10 --> tcolor(13) \ Command    Alpha stack              black  green   
 0 12 --> tcolor(14) \ Command    View                     black  red     
 0 12 --> tcolor(17) \ Editor     New File Prompt          black  red     
 7  0 --> tcolor(18) \ Message    Cursor                   gray   white
 0 15 --> tcolor(19) \ Message    Highlight                black  white   
