background color of selected listview line

Part of ListView display code
...
...
   If lst.Size>0 Then
      For i = 0 To lst.Size-1
         p=lst.Get(i) : x=" " :   s1=p.score : l1=p.level
   
            If i=marker  Then x="*" Else x=" "
               lvCommon.AddTwoLines(x,p.Name&n.substring(p.Name.Length) _
               &s.SubString(s1.length)&s1 _
               &" L"&l1&l.SubString(l1.length) & "C"&p.clrs)
         End If
      Next
   End If
End Sub

Sub lvCommon_ItemClick(Position As Int, Value As Object)
      btn1.enabled=True
      btn1.TextColor=Colors.blue
      marker=Position
                'redisplay list with marker
      'However you called your LV display 

End Sub