While browsing the internet I found this:
https://googleblog.blogspot.com/2016...ugh-emoji.html
This made me really happy.
This is just one example of "unintentional bias", and a great proposed solution to it!
While I doubt anybody would go "we shouldn't make female emojis representing a construction worker or detective", the end result did end up playing a bit on traditional gender roles. If some of these suggestions are used, we can all take a great step forward towards promoting females in STEM that might not have otherwise joined thinking it's not their place.