mixing matrix heatmap labels unclear

When i hover over the second row of the left most column, the little info box that pops up says the original channel is 488 and the reassigned channel is 594, but the y-label of the plot says that the columns correspond to "reassigned" and the column is 488. so either the axis labels are incorrect or what is displayed in the info box is incorrect. or i could be misunderstanding something but in any case it could be more clear.