>>96
You can experiment with your own designs by editing "█▓▒░ ░▒▓". The class numbers assigned to isosceles subshapes painted with the same character are produced by the index lambda. Since the shape is mirrored on its central vertical axis, a switch from [k, j] to [k, abs (n - 1 - j)] in a field of [n, 2 * n - 1] is applied first >>93. The legs of subshapes are numbered with the outermost starting at zero by k - j, while the bases of subshapes are numbered with the outermost starting at zero by n - 1 - k. Since it is the the outer segments that cut off the inner segments, the class number of any point within the shape is the smaller of its leg and base numbers.