Before revision:  DeLighT more efficiently allocates parameters both (1) within each Transformer block using DExTra , a deep and light-weight transformation  and (2) across blocks using block-wise scaling, that allows for shallower and narrower DeLighT blocks near the input and wider and deeper DeLighT blocks near the output.
After revision:  DeLighT more efficiently allocates parameters both (1) within each Transformer block using the DeLighT transformation , a deep and light-weight transformation and (2) across blocks using block-wise scaling, that allows for shallower and narrower DeLighT blocks near the input and wider and deeper DeLighT blocks near the output.