Glad I could help!
The default tileset is ASCII (actually code page 43, which describes icons instead of binary encoding of characters) and comes in a number of different sizes - DF as downloaded from Toady uses the 8x12 pixel tileset. For the LNP, I configured it to use the 16x16 pixel edition which is also included in the same stock download. I consider this more newb friendly - since one of the top complaints I've seen about the vanilla set is that it isn't square, and most of the LNP sets are 16x16, and given the clear labels for size of tiles both stock and not misleading (I do see where you're coming from, but it's an unusual position to see the difference and not already know the cause).
You can get a very similar view by zooming out a bit with iirc the square brackets; not too far or mousequery starts missing the edges and acting a bit odd.
Alternatively you can restore the unmodified stock 8x12 tileset by editing either init or d_init under Dwarf Fortress 0.34.11/data/init - if you look up tilesets on the wiki there's a good guide there.
I hope that helps!
Ninja edit: no, it's not the graphics line - that determines the special tiles usable for units. In this pack it will have no effect, because there are no such unit tiles to use. Different resolution is the issue.