Is hosting themes on GitHub safe?

I am trying get on to version control for my client projects (I work as a freelancer). I prefer GitHub’s UI a lot more than BitBucket so I’d prefer to use it.

For the most part I design custom one-off themes based off of underscores.me.

I rely heavily on Advanced custom fields, for displaying custom content and I don’t usually have any advanced functionality like front end forms or inputs in the theme, which to my (admittedly limited) knowledge are the most common security risks in WordPress themes.

With that sad, do you think I would run into any security risks with publicly hosting my themes?

Thanks Jimi,