Change fill color if cell value is greater than other cell value

[FindingMyself]

So I'm trying to write a macro that will change the fill color of the cell in a column exceeds the value of another cell, here is what I have so far.

For Each Cell In Range("G2", Range("G65536").End(xlUp))
If Cell.Value > Sheets("Settings").Range("C2").Value Then

End If

How can I make it change the fill color of the cell in that column that exceeds the value of another cell?

 

[FindingMyself]

Ah, forgot to ask. Is there a way to exclude non-numeric values from the statement? Say if a value like ABC was entered into a cell, can it prevent it from filling?