Here is a solution

@startwbs
<style>
wbsDiagram {
.root {
BackgroundColor #142F50
LineColor #E6EAF1
RoundCorner 50
FontColor white
FontStyle bold
}
.screen {
BackgroundColor white
LineColor #142F50
FontColor #142F50
FontStyle bold
}
.dashboard {
BackgroundColor #142F50
LineColor white
RoundCorner 10
FontColor white
FontStyle bold
arrow {
LineColor white
}
}
.dashboard2 {
BackgroundColor #142F50
LineColor white
RoundCorner 10
FontColor white
FontStyle bold
arrow {
LineColor red
}
}
.module {
BackgroundColor #142F50
LineColor #142F50
RoundCorner 10
FontColor white
FontStyle bold
arrow {
LineColor red
}
}
.function {
BackgroundColor #CCCCCC
FontColor #142F50
FontStyle bold
LineColor #142F50
}
.tab-function {
BackgroundColor #777777
FontColor white
FontStyle bold
LineColor #142F50
RoundCorner 10
}
.modal {
BackgroundColor #D2D6DE
FontColor #142F50
FontStyle bold
LineColor #142F50
RoundCorner 0
}
.filler {
BackgroundColor white
LineColor white
RoundCorner 0
FontColor white
arrow {
:depth(3) {
LineColor white
}
}
}
}
</style>
* Portal URL <<root>>
**< Log In <<screen>>
***> Reset Password <<modal>>
***< Portal <<screen>>
****> Global Search <<function>>
****< Quick Profile Edit <<modal>>
****< Change Password <<tab-function>>
****> Log Out <<tab-function>>
****< Dashboard <<dashboard>>
*****< Filler1 <<filler>>
*****< Filler2 <<filler>>
****> Super Admin <<module>>
*****< Add New
*****> Search <<function>>
*****< Edit
*****> Archive <<function>>
****< Vertical <<dashboard2>>
*****> Filler3 <<filler>>
*****> Search <<function>>
****> System <<module>>
*****< Add New
*****> Search <<function>>
*****< Edit
*****> Archive <<function>>
****< Sales Agent <<module>>
*****< Add New
*****> Search <<function>>
*****< Edit
*****> Archive <<function>>
****> Client <<module>>
*****< Add New
*****> Search <<function>>
*****< Edit
*****> Archive <<function>>
@endwbs