new theme & site templates!

We have a new default theme. It is called Autumn Leaves and it was fully created by RAYE. So, if anyone wants to use it, you're free to. <3

And, as you all may have noticed, the site templates have been updated as well, so that they will match whichever theme you are using. I figured it would be nice to have them match no matter what so that they aren't a stark contrast to a different theme than the default one.