The logos for Sails, Treeline, Waterline, and all projects maintained by The Sails Company are the property of either The Sails Company or Mike McNeil. They are meant to be symbols of their respective projects, and represent the quality that the core team works hard to ensure. We make these logos available to the Sails community to spread the word about the technology they're using, but do not give permission to use the logos in ways that would mislead and/or cause people to confuse other software with the original projects.
TL;DR if you’re not pretending to be us, you’re probably fine.
If you have any questions about logo usage, please contact a member of the Sails core team.