Finally made some progress integrating the Ace editor into my software. Unlike the new WYSIWYG editor on [post] and [edit] pages (based on CKEditor), Ace is for editing HTML (and CSS and Javascript.) So this will only be for end users who want to get their hands a little dirty. But my target market will hopefully include a lot of these sorts of people. For others it will be possible to just select templates and never have to edit HTML directly.