First of all, I'm assuming the color has meaning. If not, just use the bullet symbol and ignore the color. The margins (if the bullets represent different levels of subentries) will distinguish them fine.
Since the bullet is a symbol - I would suggest that a transcriber-defined symbol be used. You really can't use typeform indicators and you can't combine the bullet symbol with something else. You could use the transcriber defined shape indicator (dot 4, ed and then gr for green). That would at least keep the colored bullets all the same basic symbol.