Anyone here figure out how to successfully type romaji in Minecraft? I thought it could be cool to join a Japanese server to find people to talk to and practice with, but the romaji IME (on Mac at least) doesn’t work in Minecraft’s in-game chat. Do I need a mod, or to change something?

Title. I saw in a video of a someone playing on a Japanese server and another player's message with hiragana and kanji appearing in chat, so I know it's possible somehow, but english language Google has been wildly unhelpful; all I can find are other people searching, to no avail, to find ways to successfully type romaji and have it be converted in-game.

I'd really appreciate help with this. I think it'd make learning more fun for me.