Form Tools comes with the following themes. Some of them permit fine tuning the theme via swatches - you can learn more about themes here. Also, see the documentation to learn about theme development.

Classic Grey (1.1.3)

A remodelling of the old grey-styled Form Tools 1.x theme.

Deep Blue (1.1.2)

A fixed-width blue-coloured theme designed for 1024 pixel minimum screens.

Oh Canada (1.1.0)

My sole attempt at patriotism. A red and white theme with a few maple leafs thrown in for good measure.