New CodeMirror Editor CSS for non-standard plugins

I use the ==mark== syntax pretty heavily and am wondering if there is a way with the new CodeMirror Editor that I can highlight the ==marked== text within the Editor pane as well as the Viewer pane?

When using Debug tools, I didn't see a class that I could associate ==marked== text with.

Joplin for Desktop

Copyright © 2016-2020 Laurent Cozic
Joplin 1.1.4 (prod, win32)

Client ID: b7a727facab94c808ab6610bcaf55829
Sync Version: 2
Profile Version: 34
Keychain Supported: Yes

Revision: 9610b7e6 (master)

Unfortunately this isn't available but it can be patched in if you know javascript and are willing to edit the source code for Joplin. Currently Joplin is in the middle of an overhaul to the plugin system and I think this is something that will have to be addressed once that is done.

Thanks for the update @CalebJohn