The generator matrix

 1  0  0  1  1  1  0  1  1  1  1  0  2  0  1  1  1  1  2  0  2  2  0  0  1  1  1  1  1  2  1  1  1  2  2  1  2  1  0  1  1  2  1  1  1  1  0  2  2  2  1  0  1  1  1  1  1  0  1  0  1  1  1  0  1  1  2  1  1  1  1  0  2  2  2  1  1  1  1  2  1  1  1  2  0  1  2  1  1  0  1  1  0  2  2  1
 0  1  0  0  1  1  1  0  0  1  3  1  1  0  2  3  2  3  1  0  1  0  1  1  2  3  0  1  1  1  3  0  2  2  1  2  1  1  1  3  2  0  2  2  3  0  1  1  0  2  2  2  3  0  1  1  2  1  1  2  0  3  3  0  1  0  0  1  3  1  0  1  1  1  2  1  0  1  2  1  1  1  3  1  1  2  1  3  2  1  1  2  1  1  1  2
 0  0  1  1  1  0  1  0  1  3  0  2  3  1  1  3  0  2  2  1  3  1  0  3  3  2  0  3  0  3  3  0  3  1  1  1  2  0  1  3  1  1  2  3  0  3  0  2  1  1  1  1  0  1  1  3  0  2  2  1  0  0  2  1  3  0  1  3  0  2  0  2  0  0  1  3  3  3  3  3  0  1  3  0  2  2  1  1  2  1  1  1  1  1  3  1
 0  0  0  2  0  0  0  0  0  2  2  0  0  0  0  0  0  0  2  2  2  0  0  0  2  2  2  2  2  0  0  2  2  0  0  0  2  2  0  0  2  2  2  0  2  0  2  2  2  0  0  2  2  0  0  2  2  2  2  0  0  0  0  0  0  0  0  2  0  0  2  2  2  2  0  0  2  2  2  0  0  2  2  2  2  2  0  0  0  0  2  0  2  2  0  0
 0  0  0  0  2  0  0  0  0  2  0  0  0  2  0  0  2  2  2  2  2  2  0  2  2  0  2  0  0  2  0  2  0  0  0  2  2  2  2  2  2  2  0  2  2  0  2  2  0  2  0  2  0  2  2  0  2  0  0  2  0  0  0  0  0  0  2  0  2  2  0  2  2  0  0  0  0  2  0  2  2  2  2  0  0  2  0  0  2  2  0  0  0  2  0  0
 0  0  0  0  0  2  0  0  0  0  2  0  0  2  0  2  2  0  2  2  2  2  0  2  2  2  0  0  0  0  0  0  2  2  2  0  0  2  0  2  0  2  0  2  0  0  2  0  2  2  2  0  0  0  2  2  2  2  0  0  0  0  2  2  2  2  2  0  0  2  2  0  2  0  2  2  0  0  2  2  2  2  0  2  0  2  0  2  0  0  2  2  2  2  0  0
 0  0  0  0  0  0  2  0  0  0  0  0  2  0  0  0  0  0  0  0  2  0  0  2  0  0  0  0  0  2  0  0  0  0  2  0  0  0  2  0  2  2  2  2  2  2  2  2  2  2  2  0  2  2  2  0  0  2  0  0  0  2  2  2  2  0  2  2  0  2  2  0  2  0  2  0  2  0  0  0  2  0  2  2  2  2  2  0  2  2  2  0  0  2  0  0
 0  0  0  0  0  0  0  2  0  0  0  2  2  2  2  2  2  2  0  0  0  2  0  2  0  0  2  0  2  0  2  0  2  2  0  2  0  0  0  2  0  2  0  2  2  0  2  0  0  2  0  0  0  2  2  0  2  2  0  2  2  2  2  0  0  2  0  0  2  2  0  0  0  0  2  2  2  2  2  2  0  0  2  0  0  0  2  0  0  2  0  2  0  2  0  2
 0  0  0  0  0  0  0  0  2  2  2  0  0  0  2  0  0  0  2  0  2  2  2  2  2  0  0  0  0  2  0  2  2  0  0  2  2  2  0  2  0  0  2  2  0  2  0  2  0  0  2  0  2  0  2  2  0  0  2  0  2  0  0  2  2  0  2  2  2  0  0  0  2  0  2  2  2  0  0  0  0  2  2  0  2  0  2  0  2  0  0  2  0  2  0  2

generates a code of length 96 over Z4 who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+37x^84+74x^85+125x^86+158x^87+215x^88+182x^89+229x^90+206x^91+205x^92+210x^93+207x^94+230x^95+194x^96+216x^97+165x^98+222x^99+170x^100+198x^101+124x^102+98x^103+120x^104+94x^105+100x^106+82x^107+45x^108+46x^109+45x^110+26x^111+27x^112+4x^113+17x^114+2x^115+7x^116+9x^118+3x^120+1x^122+2x^126

The gray image is a code over GF(2) with n=192, k=12 and d=84.
This code was found by Heurico 1.16 in 4.56 seconds.