Act 2 has a bit more space between the rows.
In Act 2, the rows measure .0625" from the center of one row to the center of the next. The beads and background colors of this collection all work together -- so mix and match as you like. To combine with Spoonflower Petal Cotton solids: use "Lemon Lime" or "Marigold" with the yellow beads, use "Grass" or "Lime" with the green beads, use "Orchid" with the purple beads, use "Black" with the black background.