1 Each square canvas should contain a colored gradient bordered by a narrow white margin and a black line. The column on the left contains linear gradients, the column on the right radial gradients.
4 Larger green to white to larger red
8 Blue to white in the top (inner) half, red to yellow in the bottom (outer) half
9 Blue to white, red to yellow (same as previous)
10 Blue to white, red to yellow (same as previous)