A lot of teams are now using Slack for communication and Sweet Themes is a directory for custom sidebar themes. I’ve found as you become a member of more and more teams that customizing the colors of each one makes it easier to separate them and this is a simple way of grabbing the colors.
Also, be sure and check out the Laravel slack channel. It has over 1,600 members and a great way of communicating with other users of the framework.
Directory of Slack Themes is a post from Laravel News.