Provided the green colour is that shown in the sample, the following will mark the text in those green cells as hidden/unhidden.
Code:
Sub ToggleTextInGreenCells()
Dim oTable As Table
Dim oCell As Cell
Dim oRng As Range
For Each oTable In ActiveDocument.Tables
For Each oCell In oTable.Range.Cells
If oCell.Shading.BackgroundPatternColor = RGB(194, 214, 155) Then
Set oRng = oCell.Range
oRng.End = oRng.End - 1
If oRng.Font.Hidden = True Then
oRng.Font.Hidden = False
Else
oRng.Font.Hidden = True
End If
End If
Next oCell
Next oTable
lbl_Exit:
Set oTable = Nothing
Set oCell = Nothing
Set oRng = Nothing
Exit Sub
End Sub