Highlight the two spaces at the end of a line
Is your feature request related to a problem? Please describe.
Many markdown/text editors highlight when you have two spaces at the end of a line as to make it easier to look on a glance whether, say a poem, is formatted correctly. Because \ doesn't work with all markdown parsers to create a new line it is not always possible to use it, though I currently use it when I can. But it is frustrating to have to switch to another editor when that isn't possible.
Describe the solution you'd like
Off the top of my head, something akin to gedit, although with a lot less contrast. Perhaps a light grey?