Roy Scholten (aka yoroy) talks about his experience as the user experience and usability co-maintainer for Drupal 7. He worked with Bojhan Somers during the last development cycle to help maintain consistency in the user interface and user experience for D7. At DrupalCon Chicago, he and Bojhan presented about Interface patterns for Drupal 7, which was geared towards contributed module maintainers. He also discusses some of the common pitfalls the developers can fall into, especially in terms of when to use vertical tabs. He also talks about which areas of the D7 interface could still use some improvement in the future and how contributed modules can help explore potential solutions that could be tested, proven and eventually migrated back into D8 core.