Question about drop shadows in templates... Multiply blend mode

[StephanieLH]

I have noticed that when there is a shadow layer that it is always set to "multiply" blend mode. So if I do use the shadow, when I go to merge my shadow and element layer I get a strange effect. I then have to go back and assign "normal" blend mode to the shadow before merging layers.

I am just curious why templates have this strange blend mode. Does it have to do with the process of making the template or is there another reason?