Swatches
Swatches were added in Form Tools 2.1.3. They allow any theme to be extended to allow additional customization. For example, the default theme lets you choose between 10 different colour sets, as illustrated in the screenshots below.
Swatches are selected on the same pages as where you select themes. When you choose a theme that contains a swatch, a second swatch dropdown will appear.
Default theme: Aquamarine swatch
Default theme: Blue swatch
Default theme: Dark blue swatch
Default theme: Green swatch
Default theme: Grey swatch
Default theme: Light brown swatch
Default theme: Orange swatch
Default theme: Purple swatch
Default theme: Red swatch
Default theme: Yellow swatch