A dark concrete slab features intricate chalk drawings within a white border.
A dark concrete slab is seen close up with a chalk drawing of shapes inside a white square border. Four pink triangles are in the top half of the square, two pointing up and two pointing down in an alternating pattern, with one pointing down on the left and one pointing up on the right. In the top right corner, there are four short diagonal white lines between the triangle and the corner of the frame. An orange zigzag-shaped line is drawn between the triangles, which also have yellow lines on the top and bottom points of each. Five short horizontal dashes are seen across the middle of the square. Below these are seven purple circles with an orange and yellow vertical line between each. There is a row of four circles on the top, starting with a circle, then an orange and yellow line together, then another circle. This row starts and ends with purple circles. The row below starts and ends with the orange and yellow lines. Below each of the circles in the bottom row is a thin yellow horizontal line. A soft light comes from the top left angle, while the bottom right is slightly more shaded.