In order to get the conditional formatting to work you have to first select the data you wish to format and then choose the conditional formatting button. From the second list choose "Equals to" and type for an example TRUE. From the "Format" button choose the color of your liking. To get the tool to color the "FALSE" cells in a different color, choose the conditional formatting again and do the same procedure all over except next to "Equals to" type FALSE.

Hope this helps.

Rgrds,
Kristiina