Select a tool, then click an empty cell to place it. Click a placed tool to remove it.
Right-click or R to rotate mirrors.
Goal: Light up every target. Some targets need specific colors!
Colors: Red + Blue = Magenta, Red + Green = Yellow, Blue + Green = Cyan, All = White.
Shortcuts: 1-6 tools, R rotate, Del erase, Enter reset.
All targets illuminated. Brilliant work!