The label of a newform $f\in S_k^{\rm new}(N,\chi)$ has the format \( N.k.a.x \), where

\( N\) is the level;

\(k\) is the weight;

\(N.a\) is the label of the Galois orbit of the Dirichlet character $\chi$;

\(x\) is the label of the Galois orbit of the newform $f$.