'How to change the color of the dot inside a radio button with Resource Hacker

I’m trying to modify the color of the dot inside a radio button with Resource Hacker. I managed to change the color of the circle/frame but not the dot inside. I looked everywhere online and found similar examples but doesn’t exactly suit me with my situation. I guess all I need is the right syntax format. I tried so many different code combinations to no avail since I’m a newbie in coding. I’d really appreciate if you could help me out. The exact code I’m fiddling is below. Many thanks in advance.

      object ScanCandidateGrp: TRzRadioGroup
              Left = 103
              Top = 34
              Width = 64
              Height = 66
              Font.Charset = ANSI_CHARSET
              Font.Color = clWindowText
              Font.Height = -13
              Font.Name = 'Tahoma'
              Font.Style = []
              TextShadowColor = clActiveBorder
              GroupStyle = gsCustom
              ItemFrameColor = clRed      << I managed to change the circle color with this
              ItemHotTrack = True
              ItemHighlightColor = clBlue
              ItemHotTrackColor = clGreen
              ItemIndex = 0
              Items.Strings = (
                'Bob'
                'Alex'
                'Sue')
              ParentFont = False
              StartXPos = 2
              StartYPos = 0
              TabOrder = 0
              Transparent = True
              VerticalSpacing = 5
              OnClick = ScanCandidateGrpClick
            end 


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