Open attached PlotSetupHeat.opju

2.New a graph window, right click on layer icon and select Plot Setup.

3.On the top panel, select Virtual Matrices from Available Data combo, then select VM1 on the right panel.

4.Select Heatmap in the Plot Type list in middle panel, then check Z checkbox on the right panel, click Add and OK.

==> the added plot is full black.

5.Double click it to open PD.

==> There is no Colormap tab.

Fixed in Origin2025b.