docs: def set(self, x, y, value):
          """
          Set the data at (x, y) to value.
          """
          xBase = int(x) * self.xScale
          yBase = int(y) * self.yScale
          for xOffset in range(self.xScale):
              for yOffset in range(self.yScale):
                  self.data[yBase + yOffset, xBase + xOffset] = value