Foam Atlas

Rescue two color-locked star bubbles: the top star needs VIOLET, the bottom star GREEN. Mix neighboring pigments with the Edge tool: red+blue=violet, blue+yellow=green, red+yellow=orange; a secondary color absorbs either of its ingredients, but incompatible mixes turn muddy. Connected groups of four pop only if their star matches that color. Two refill paints can repair ordinary bubbles; stars cannot be directly painted. Finish within six operations.

Tap controls, or Tab then Enter/Space. R restarts. Numbered coordinates identify board cells. Every action is turn-based; take time to plan.

Color filling, edge mixing and four-bubble groups; static adjacency replaces deformable physics.