Post Date / Post Schedule - January 2017
I've overlooked some elements when I updated colours in #10206.
This PR includes:
I intentionally left the the (i) icon for now because it's probably better to fix globally.
Date Picker/Post Schedule: Update some colours to add more contrast f…
…or better accessibility
Test live: https://calypso.live/posts?branch=update/post-schedule-color
Design wise reviewed on Chrome: 👍
Code is a small change so I was able to review that too: 👍