This effect highlights the first 3 places in the series summary tables in different colours. It is an extension of Colin’s HighlightWins effect. It can be used as it is or you can examine the code to see how only the race columns are manipulated (1.0, 2.0 and 3.0 will not be highlighted in other columns or the table header). It will also highlight the results even if they are discarded as it uses a regular expression to match the points for 1st, 2nd and 3rd. The colours by default match those of stickers commonly used to denote these positions, but you can edit the colours to those of your choice.
It can be downloaded from here.
Updated to V1.6 30th August 2015 Changed Regular expression used – Jon