The Eyedropper 
in Jig Workshop is very powerful, not only can it grab colours but it can also grab materials and textures from any sub-object.
This is extremely useful if you want to copy the same visual properties from another object in your scene.
To do this:
- Select the object that you wish to change
- Press the Color Palette on the toolbar, and open the Color Menu.
- Select the Eyedropper in the bottom left corner. A larger eyedropper will be displayed over the Color Pallet to let you know it’s active.
- The next object you tap will have both its color and material properties copied to your current selection.
If you accidentally tap on the wrong object you can press the undo button 
to reverse the changes.
The short video below demonstrates how you can use the Eyedropper to copy colours, materials and textures from one object to another, making the creation of Jigs fast and easy.