Custom Bulkhead Profiles is a Kerbal Space Program mod to set icons and tooltips for custom bulkhead profiles. KSP has provided part filters for some time now, including the ability to filter parts based on their "bulkhead profiles": essentially their size and shape. However, KSP determines a part's profiles simply by tags defined in the part's configuration, with minimal support for custom profiles: the part would be sorted correctly, but the filter buttons would have a question mark icon