Spectrum

Spectrum is a color gradient puzzle built around a single, focused idea: rebuild a painting by moving its colors back into balance. Each canvas pins four corner tiles as fixed anchors and scatters the rest. Your task is to swap loose tiles until the hue flows smoothly from corner to corner, recreating the intended gradient.
Every canvas gives you a limited number of moves, so the challenge is reading the spread of color and planning the fewest swaps that restore harmony. A live harmony meter shows how close the painting is to complete, while the move counter keeps each decision meaningful.
The difficulty curve is hand-shaped. Early canvases stay small and untimed so the swap mechanic can sink in. Later canvases widen the grid, introduce far more interpolated colors, and add a countdown that tightens as you climb, turning calm color-reading into quick, confident play.
When a canvas resists you, three boosters bend it back your way. Remix re-scatters every loose tile for a fresh angle, Rewind steps back a swap and returns the move you spent, and Extra Reach grants five additional moves. Boosters are stocked in the Atelier using chroma coins earned from completed canvases, giving every finished painting a tangible payoff.
Completed canvases chain into a run, and each run can be signed and framed on the Gallery Board, a local leaderboard that tracks your highest scores and the furthest canvas you reached.