1 - 2 - 3 - 4 - 5 - 6 - 7Elements that look like each other are perceived as belonging to a group.
The four maroon dots on the left appear to belong together.
Interactive projects can become quite complex, by grouping similar information by color, size and/or shape you can reduce the complexity of your project and it will become more user friendly. Creating a group by similarity of color has the strongest effect.
The single dot within the second group appears to stand alone. This example works well if you want to create a focal point that stands out from the rest of the content.