This is the nicest-looking 5e compatibility logo I can find.
I wish that the silver filagree version of this logo that MT Black uses was still available, but it's not part of this download and if it's a separate item, I can't find it.
This is an awesome logo that I believe will help unify some of the smaller third party publishers who are doing OGC/OGL versions of 5E, I like the variant colors (my favorite is the red).