You can play around with the colors and wording of the scheduling on your site.
I recommend using Global Colors - Skip to minute 7:00 in the video for a walkthrough - Global colors will let you set all the colors for all the different pages all at one time rather than going through and changing the colors for each of the different scheduling pages.
Be sure to click to Save.
If you ever notice your scheduling looking a little funny on the front end, just come back here and click the Save button.
Note: Video interface may look a little different than this tutorial interface.