Please, please before buying curtains with this tab top headings, measure the distance from the top of the pole to the top of the window recess so that you know how long the loops need to be.
If you buy ready made curtains there should be some on display so that you can check the length of the loops – measure them and compare with the distance from the top of your curtain pole to the top of the window recess. If you don’t check that the loops are a suitable length for the window and pole where they will hang, there is a risk that the loops will end below the top of the window recess, which looks horrible.
The length of tab top the curtains includes the loops. If you are having the curtains made discuss this with your curtain maker and agree the length of the loops.
If you follow all this advice then tab top curtains look good in a modern room.