Colored lasers! Each turret has a different color to allow creating of nice gradients. You can have up to 360 different colors (default is 30).

The mod uses different turret entities for different colors, the color of a placed turret stays same. If you decide to delete the mod or change amount of colors, use the shortcut button first to revert all disco turrets to the vanilla state. Otherwise the game might just delete turrets that don't have existing prototype anymore.