After computation has finished, you can visualize the results via the Show dialog.
Select Visualize > Show.
The Show dialog opens.
Select Isolines and Scalar field in both columns of the Show dialog.
Select Legend in the right column.
The default number of isolines is 11. Change it to 20 to get a finer distribution of temperature values.
Select Visualization > Options for Scalar fields.
Change the number of isolines to 20 and click on Apply.
The display of the isolines changes in the dialog and in the main window simultaneously.
The figure shows that the graduation refinement concerns only regions outside the SCA. Therefore, increasing the number of isolines has mostly limited practical use.
Reset the number of isolines to 11 and click on Apply.
The number of isolines respectively temperature intervals is reduced in the drawing and in the legend.
Click on Close to close the Options for Scalar Fields dialog.