If you have already marked the cells contents as bold and red or green then the following will shade the cells, although the colour you quoted is in fact a pale green?
Code:
Sub Macro1()
Dim oTable As Table
Dim oCell As Cell
For Each oTable In ActiveDocument.Tables
For Each oCell In oTable.Range.Cells
If oCell.Range.Font.Bold = True Then
If oCell.Range.Font.ColorIndex = wdRed Or _
oCell.Range.Font.ColorIndex = wdGreen Then
oCell.Shading.BackgroundPatternColor = -654246093
End If
End If
Next oCell
Next oTable
Set oTable = Nothing
Set oCell = Nothing
End Sub