editor look customisation (Theme support)
I have been an extensive user of ulysses from the time they had one time pay option to now a subscription only model. One thing this app lacks is theme support for editor, you support this for previews. something like this

This app has come a long way, just few more to go before it replaces multiple apps. is there is a way to add custom theme support for editor itself (NOT PREVIEW) ?
I found this main.css(Applications > FSNotes.app › Contents > Resources > MPreview.bundle › main.css) file which works for file preview theming, is there something similar available available for the editor as well?
Ulysses does this extremely well, within their app, without any tinkering.
Is there any file which can help me change the look of editor by editing something like main.css which is for previews.
Why not? Just make pull request