creating pictures [by colouring] [1]

Colour these squares RED : A1-A25, B1-B25, C1, C2, C24, C25, D1, D2, D24, D25, E1, E2, E24, E25, F1, F2, F24, F25, G1, G2, G24, G25, H1, H2, H24, H25, I1, I2, I24, I25, J1, J2, J24, J25, K1, K2, K24, K25, L1, L2, L24, L25, M1, M2, M24, M25, N1, N2, N24, N25, O1, O2, O24, O25, P1, P2, P24, P25, Q1, Q2, Q24, Q25, R1, R2, R4-R25, S1, S2, S4-S25, Colour these squares BLUE : C3, C4, C5, C7, C14, C17, C18, C19, D3, D7, D9-12, D14, D15, D21-23, E3, E5-7, E9-12, E14, E15, E17-23, F3, F5, F12, F13, F22, F23, G3, G5, G7-10, G14-20, G22, G23, H3, H5, H9-12, H22, I3, I5, I9-22, J3, J9, J10, J15-22, K3-7, K12, K13, K15-19, K21,K22, L3, L8-13, L15, L21, L22, M3, M5, M6, M10, M12, M13, M15-19, M21, M22, N3,N5-10, N12, N13, N15-19, N21, N22, O3,O8-10, O18, O19, P3-6, P8-12, P14-16, P18, P19, P21-23, Q14-16, Q21-23,

Follow the instructions on the right hand side to reveal the design hidden in the grid. To start the sequence again just refresh the page.