Thanks.
I ‘ll create a branch with those not implemented yet left and try the official solution so they may not conflict.
The tags and categories uses the same set of regex but in javascript which doesn’t support \p{Katakana} stuff. I raised an issue to unify regex in that plugin, but the attempt failed. is it possible to use the same whitelist in the official implementation? eg a converter to convert ruby whitelist to javascript.
And the unicode avatar is just excellent!