Is it possible to customize the Markdown editor’s toolbar? On a forum like this, code blocks are probably by far the most frequently used format option, but they’re currently hidden at the end of the toolbar, behind the "+" dropdown button. Particularly on phones, where code blocks are the most tedious to type by hand, finding the the tool bar option first requires scrolling to the end of the toolbar and then tapping "+" (which is btw rather terrible UX on Discourse’s part – have either scrolling or a "rest" menu but not both!)
On the other hand, some of the currently first-class toolbar buttons like the emoji and gif selectors are basically irrelevant.