Weird vertical alignment of braces / brackets

[Ecco]

The vertical space between brackets and digits is not consistent: the distance between the top of a digit and the top of a bracket is much smaller than the bottom one.

In the same fashion, braces are not vertically aligned with the "=", "+", "-" symbols:

Is that on purpose?

[pauldhunt]

the brackets/braces/parens are designed to harmonize with the lowercase as default:
(a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) (q) (r) (s) (t) (u) (x) (y) (z)

if there is enough interest, it may be possible to add casing alternates for these in a future version of SCP that harmonize primarily with majuscules.