니까 맞다

now I look, that is right

The first clause is what made you check, and 맞다 is agreeing that it holds up. Six of these lines pair it with looking or listening, giving the exact move of conceding a point: having heard you out, that is a fair point; now that you mention it, it does; seeing the logo, it does look right. It is agreement arrived at on the spot rather than agreement you had already.

Register: casual agreement