whitespace-mode faces missing

[dgutov]

I wonder if there are some colors we can pick up.

The most important faces among those, I think, are whitespace-trailing and whitespace-line.

[jasonm23]

Noted. I should have time to work on these at the weekend. (I won't repost this comment to all your issues, but obviously it will apply to all.)

Thanks again for your issue reports.