The Z-axis is represented by the border color of each tile.
To choose the labels to place on an axis, use the selection controls on the top left
Click the ↔ buttons between axis to switch their selections
Click ↻ to reverse the order of labels on an axis
The X-axis goes from left to right. The labels associated with the X-axis in the matrix are on the top right
The Y-axis goes from bottom to top. The labels associated with the Y-axis in the matrix are on the left
The Z-axis is represented by the colored borders around items in the matrix. Red colors are closer to the first listed label in the Z-axis chooser, while blue colors are closer to the second one. Purple colors are in the middle
Hover over an item to view its complete description