Comment by sstephenson

I was involved with the Wysihat project too. What we found is that its approach, like most other editors', is fundamentally broken. We created Trix to solve the problem. https://github.com/basecamp/trix#different-by-design

I think you'll find Trix's toolbar easy to style however you'd like, but if not, it ought to be straightforward to implement your own using the API.