 
 : add-color-line ( color track -- track )
     <shelf> { 0 1.5 } <border>
-    rot <solid> >>interior 
+    rot <solid> >>interior
     f track-add ;
 
 : add-content-area ( labeled -- labeled )

: <labeled-gadget> ( gadget title -- labeled )
    vertical labeled-gadget new-track with-lines
    add-title-bar
    swap >>content dup content>>
    vertical <track> 
    add-content
    { 5 5 } <border>
    content-background <solid> >>interior


M: labeled-gadget focusable-child* content>> ;

! gradients don't work as backgrounds on windows, see #152 and #1397
: title-bar-interior ( -- interior )
    os windows?
    [ toolbar-background <solid> ]
    [ title-bar-gradient <gradient> ]
    if ;

: add-title-bar ( title track -- track )
    swap >label
    [ t >>bold? ] change-font
    { 0 4 } <border>
    title-bar-interior >>interior
    f track-add ;

: add-content ( content track -- track )
