Maia Weinstock writes about LEGO's first female scientist minifig:

At this point I should mention that the gender gap at LEGO goes well beyond minifigs in STEM. I’ve written previously about the company’s gender problem, which received much media attention after the 2012 release of the girl-focused Friends theme. For a visual primer on this issue, I highly recommend Anita Sarkeesian’s powerful two-part video about the “LEGO Boys Club.” For more historical perspective, David Pickett does a wonderful job in his multi-part blog series deconstructing the LEGO gender gap. I also put together a colorful infographic displaying gender in LEGO heads. During my investigation, I found that the ratio of all-time minifigure models is roughly 4:1 in favor of males. And the female characters LEGO has produced are often laden with stereotypes. A quick glance at some typical female minifig torsos suggests that girls/women are predominantly into pink, hearts, and excess skin.