Anyone who wants to can submit a pull request (code change) to the steem or condenser (steemit.com) GitHub repositories. It is up to the Steemit development team to decide whether the pull request is accepted though.
https://github.com/steemit/steem
https://github.com/steemit/condenser
Thanks for the info Tim, I wondered where to go with an idea... It would be to have a choice of colored text for the profile instead of just white.