diff --git a/avr/modules/lcd2/gui2/base/mainwindow.asm b/avr/modules/lcd2/gui2/base/mainwindow.asm
index e8ca06f..4788d76 100644
--- a/avr/modules/lcd2/gui2/base/mainwindow.asm
+++ b/avr/modules/lcd2/gui2/base/mainwindow.asm
@@ -79,6 +79,8 @@ MainWindow_Init:
   ldi r16, HIGH(MainWindow_DefaultSignalmap*2)
   std Y+OBJECT_OFFS_SIGNALMAP_HI, r16
 
+  ; set style which has no spacing and no borders so needs no drawing because
+  ; the children fill the screen completely
   ldi r16, LOW(MainWindow_DefaultStyle)
   std Y+WIDGET_OFFS_STYLE_LO, r16
   ldi r16, HIGH(MainWindow_DefaultStyle)
@@ -93,6 +95,23 @@ MainWindow_Init:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine MainWindow_GetContentWidget @global
+;
+; @param Y address of widget
+; @param X parent widget (if any)
+; @return CFLAG set, if found, cleared otherwise
+; @return r19:r18 resulting object
+; @clobbers r16
+
+MainWindow_GetContentWidget:
+  ldi r16, 1                ; idx 0=title, 1=content
+  bigcall OBJ_GetChildAt
+  ret
+; @end
+
+
+
 
 
 ; ***************************************************************************
@@ -248,6 +267,9 @@ MainWindow_TitleStyle:
 
 
 
+; this is the defining style for most windows because normally
+; the style of the parent will be propagated to newly created child widgets.
+
 MainWindow_ContentStyle:
   .dw DISPLAY_COLOR_BLACK      ; frontCol_norm
   .dw DISPLAY_COLOR_LIGHTGREY  ; backCol_norm
@@ -259,7 +281,7 @@ MainWindow_ContentStyle:
   .dw DISPLAY_COLOR_BLACK      ; borderCol_activated
   .dw DISPLAY_COLOR_WHITE      ; shadowCol_activated
   
-  .db 2, 1                     ; outerBorderSize, innerBorderSize
+  .db 2, 2                     ; outerBorderSize, innerBorderSize
   .dw ili9341Font12x16_1*2     ; font
   .db 12, 16                   ; charWidth, charHeight