Editor width

The original Gutenberg editor with its small, fixed editor width is for me – and many others – nearly unusable. So, thank You for your plugin!
But it could be better …
I use Theme twenty sixteen and in classic TinyMCE the usable editor width is like the display width in the resulting webpage. As stated in twenty sixteen theme-layout: larger for pages, smaller for posts.
I don’t need or want any changes in the layout of the admin interface (like your plugin does it in version 0.2) and activate “Legacy editor style” does not help, because it deactivates admin interface changes, but changes fonts in editor (why?).
Away from this I need better editor width!
Although your full width editor design is much better than original Gutenberg small width, the best solution for me would be “editor content width = webpage content width” like classic TinyMCE.

So, please.
1.) Make editor width a separate option (without restyling admin interface, but keep weblike-fonts within the editor).
2.) Take editor width from theme like classic TinyMCE (Gutenberg editor margins and borders taken in calculation)
3.) Repair display of page title in editor (way too small – but OK in webpage)