Noto Sans Korean Asymmetry

[davelab6]

@mcognetta wrote in b/414639943

I noticed a small asymmetry in Noto Sans (and possibly others) for Korean. The compatibility jamo ㅗ and ㅛ (U+3157 and U+315B, respectively) are slightly misaligned. Compare this to the analogous pair ㅜ and ㅠ (U+315C and U+3160, respectively).

It looks like the stems (is this the correct term?) for ㅛ are slightly longer than the stem for ㅗ (where as ㅜ/ㅠ are the same length). I am not a font designer, so please take my opinion with the appropriate level of disregard, but imo these should be fully aligned. Since these are the compatibility jamo versions of these vowels, they only ever appear alone (like not in a composed syllable form) and so their difference is somewhat apparent, especially in things like colloquial Korean emoticons.

For context, this was noticed when implementing some Korean keyboards, as those ㅗㅛ and ㅜㅠ appear side-by-side on the same keys in some layouts, so the misalignment is a bit jarring, since everything is otherwise well aligned.