as for contructive critics for exile's version - i think that the intervals between 's'/'e' and 'e'/'d' should be equal, at the moment the caption looks like 's ed'.
on 32x32 and 16x16 variants 'lite-c' can be omitted, as it's no longer visible, this way 'sed', 'wed' etc will be more distinct.

and yes, even now these icons are way better than 'official' ones. good work!