@Suty Thank you for your answer, I will be looking forward to changing your plans. :)

@idefix37 I was pretty sure that the isobars comes from the NWP which is selected from the NWP checkbox. Usually I use ICON model, but I wanted to make sure that I,m correct. As you see on your pictures, not olny thickness is important, imagine that the same map has black isobars, won't they be more readable? Sometimes a baric field with isobars every 1 mb would also be needed. Thank You for your time to write the answer.