[TYPO3] GMENU inherite backColor from parent page in menu

[Mitja Felicijan]

I would tile to have graphical menu with such structure and backColors

Page 1 (backColor1)
  subpage 1 (backColor1)
  subpage 2 (backColor1)
  subpage 3 (backColor1)
Page 2 (backColor2)
  subpage 1 (backColor2)
  subpage 2 (backColor2)
  subpage 3 (backColor2)
Page 3 (backColor3)
  subpage 1 (backColor3)
  subpage 2 (backColor3)
  subpage 3 (backColor3)


Here is my code witch does this

Page 1 (backColor1)
  subpage 1 (backColor1)
  subpage 2 (backColor2)
  subpage 3 (backColor3)
Page 2 (backColor2)
  subpage 1 (backColor1)
  subpage 2 (backColor2)
  subpage 3 (backColor3)
Page 3 (backColor3)
  subpage 1 (backColor1)
  subpage 2 (backColor2)
  subpage 3 (backColor3)

lib.rightMenu = HMENU
lib.rightMenu {
   1 = GMENU
   1 {
     expAll = 1
     NO {
       allWrap = |<br>
       XY = 165,20
       backColor = |*| #CFD1E2 || #F7D5B4 || #A7DACF || #FCEB98 || 
#F6B8B1 || #8CD2E8 |*|
       20 = TEXT
       20 {
         fontColor = |*| #7C76AD || #DC651D || #0A7168 || #9D943C || 
#C7101A || #0088C7 |*|
         fontFile = {$PTHroot}ttf/verdanab.ttf
         fontSize = 9px
         text.field = title
         niceText = 0
         antiAlias = 1
         text.case = lower
         offset = 10,14
        }
     }
   }
   2 = GMENU
   2 {
     NO {
       allWrap = |<br>
       XY = 165,20
       backColor >
       backColor < lib.rightMenu.1.NO.backColor
       20 = TEXT
       20 {
         fontColor = #000000
         fontFile = {$PTHroot}ttf/verdana.ttf
         fontSize = 9px
         text.field = title
         niceText = 0
         antiAlias = 1
         text.case = lower
         offset = 15,14
        }
     }
   }
}

I dont know how to get color to child page. I know where I do wrong thing

backColor >
backColor < lib.rightMenu.1.NO.backColor

but have no clue how to do it different.

Greetings
Mitja